The conjugate base of (S)-3-(indol-3-yl)-2-oxobutyric acid.


beta-D-fructofuranose 6-phosphate(2-)

An organophosphate oxoanion that is the dianion of beta-D-fructofuranose 6-phosphate arising from deprotonation of the phosphate OH groups.


Trianion of UDP-alpha-D-galacturonate arising from deprotonation of carboxy and diphosphate groups.


The dicarboxylate anion of 2-methylene-3-methylsuccinic acid; major species at pH 7.3.


Dianion of GDP-6-deoxy-alpha-D-talose arising from deprotonation of the diphosphate OH groups; major species at pH 7.3.


Conjugate base of 4-(L-alanin-3-yl)-2-hydroxy-cis,cis-muconate 6-semialdehyde having anionic carboxy groups and a protonated primary amine; major species at pH 7.3.


The conjugate base of 1,6-dihydroxy-2-methylcyclohexa-2,4-dienecarboxylic acid; major species at pH 7.3.


The conjugate base of 2,4-dichloro-5-oxo-2,5-dihydro-2-furylacetic acid; major species at pH 7.3.


glycerone phosphate(2-)

A dianionic form of glycerone phosphate arising from deprotonation of the phosphate OH groups; major species at pH 7.3.


The conjugate base of a 1,2-diacyl-sn-glycero-3-phosphocholine compound formed by deprotonation of the phosphate OH group.


chlorogenate

A monocarboxylic acid anion that is the conjugate base of chlorogenic acid; major species at pH 7.3.


The carboxylate anion of N-acetyl-beta-D-galactosaminyl-(1->4)-alpha-N-acetylneuraminosyl-(2->3)-beta-D-galactosyl-(1->4)-beta-D-glucosylceramide.


The conjugate base of 3-(4-hydroxy-3,5-diiodophenyl)lactic acid; major species at pH 7.3.


Dianion of dTDP-4-dehydro-6-deoxy-alpha-D-glucose arising from deprotonation of the diphosphate OH groups; major species at pH 7.3.  It is an intermediate in dTDP-rhamnose biosynthesis.


hoerhammericine

An Aspidosperma alkaloid with formula C21H24N2O4 found in Catharantheus lanceus. Note that the stereoconfiguration of the epoxy group is based on CHEBI:144374, and of the 19 hydroxy group on CHEBI:144372 (the same enzyme produces the two).


A monocarboxylic acid anion resulting from the removal of a proton from the carboxy group of 17alpha-(N-acetyl-D-glucosaminyl)estradiol 3-glucosiduronic acid; major species at pH 7.3.


2-deoxy-D-ribose 5-phosphate(2-)

Dianion of 2-deoxy-D-ribose 5-phosphate arising from deprotonation of the phosphate OH groups; major product at pH 7.3.


chondroitin D-glucuronate anion

Anionic form of chondroitin D-glucuronate arising from deprotonation of the carboxylic acid groups of the repeating units; major species at pH 7.3.


The conjugate base of 2-deoxy-D-gluconic acid; major species at pH 7.3.


undecaprenyl phosphate(2-)

Dianion of undecaprenyl phosphate arising from deprotonation of the phosphate OH groups; major species at pH 7.3.


The conjugate base of 3-dehydro-L-gulonic acid; major species at pH 7.3.


The conjugate base of 1-guanidino-1-deoxy-scyllo-inositol 4-phosphate having a dianionic phosphate group and a protonated guanidine; major species at pH 7.3.


The conjugate acid of 11-O-demethyl-17-O-deacetylvindoline arising from protonation of the tertiary amino group; major species at pH 7.3.


An organophosphate oxoanion obtained via global deprotonation of the phosphate OH groups of 1-phosphatidyl-1D-myo-inositol 3,4-bisphosphate.


Octaanion of myo-inositol 1,3,4,6-tetrakisphosphate arising from global deprotonation of the phosphate OH groups; major species at pH 7.3.


An alpha-amino-acid anion that is the conjugate base of O-succinyl-L-homoserine having anionic carboxy groups and a protonated amino group; major species at pH 7.3.


The conjugate base of S-carboxymethyl-L-cysteine having anionic carboxy groups and a protonated amino group; major species at pH 7.3.


Tricarboxylate anion of 2-caffeoylisocitric acid; major species at pH 7.3.


A monocarboxylic acid anion resulting from the deprotonation of 6-hydroxynicotinic acid; the major species at pH 7.3.


neryl diphosphate(3-)

An organophosphate oxoanion that is the trianion of neryl diphosphate, arising from deprotonation of the diphosphate OH groups; major species at pH 7.3.


N-acyl-D-mannosamine 6-phosphate(2-)

Dianionic form of any N-acyl-D-mannosamine 6-phosphate arising from deprotonation of the phosphate OH groups; major species at pH 7.3.


A 2'-deoxyribonucleoside 5'-diphosphate obtained by deprotonation of the diphosphate OH groups of 2'-deoxyadenosine 5'-diphosphate (dADP); major species at pH 7.3.


The conjugate acid of D-ornithine having an anionic carboxy group and both amino groups protonated; major species at pH 7.3.


N-acylglycinate

A carboxylic acid anion obtained by deprotonation of the carboxy group of any N-acylglycine.


The conjugate acid of 1-amino-1-deoxy-scyllo-inositol arising from protonation of the primary amino group.


The conjugate acid of 7-O-acetylsalutaridinol arising from protonation of the tertiary amino function.


2'-deoxyguanosine 5'-monophosphate(2-)

A 2'-deoxyribonucleoside 5'-monophosphate(2-) obtained by deprotonation of the phosphate OH groups of 2'-deoxyguanosine 5'-monophosphate (dGMP).


N-acylsphingosine 1-phosphate(2-)

The dianion formed by deprotonation of both phosphate OH groups in any N-acylsphingosine 1-phosphate.


The conjugate base of questin arising from selective deprotonation of the 2-hydroxy group.


Dianion of sn-3-O-(geranylgeranyl)glycerol 1-phosphate arising from deprotonation of the phosphate OH groups.


The conjugate base of 3-mercaptopyruvic acid.


hypotaurocyamine zwitterion

Zwitterionic form of hypotaurocyamine having an anionic sulfinate group and a protonated guanidino group; major species at pH 7.3.


α-humulene

The (1E,4E,8E)-isomer of alpha-humulene.


Dicarboxylate anion of sinapoyltartronic acid.


The conjugate base of cis-2-chloro-4-carboxymethylenebut-2-en-1,4-olide.


The conjugate acid of coformycin arising from protonation of the imine nitrogen.


dolichyl phosphate(2-)

Dianion of dolichyl phosphate arising from deprotonation of both phosphate OH groups.


beta-D-glucose 1-phosphate(2-)

An organophosphate oxoanion that is the dianion of beta-D-glucose 1-phosphate arising from deprotonation of both phosphate OH groups.


sn-glycerol 1-phosphate(2-)

A glycerol 1-phosphate(2-) that is the dianion of sn-glycerol 1-phosphate arising from deprotonation of both phosphate OH groups.


The conjugate base of S-formylglutathione having anionic carboxy groups and a protonated primary amino group.


2,2-dialkylglycine zwitterion

The zwitterionic form of a 2,2-dialkylglycine.


humulone

An optically active cyclic ketone consisting of 3,5,6-trihydroxycyclohexa-2,4-dien-1-one bearing two 3-methylbut-2-en-1-yl substituents at positions 4 and 6 as well as a 3-methylbutanoyl group at the 2-position.


cis-4-hydroxy-D-proline zwitterion

Zwitterionic form of cis-4-hydroxy-D-proline having an anionic carboxy group and a protonated amino group.


N(6)-acyl-L-lysine zwitterion

Zwitterionic form of an N(6)-acyl-L-lysine.


Trianion of flavin adenine dinucleotide arising from deprotonation of the diphosphate OH groups and the imide nitrogen.


aldehydo-D-arabinose 5-phosphate(2-)

An  organophosphate oxoanion that is the dianion of D-arabinose 5-phosphate arising from deprotonation of both phosphate OH groups; major species at pH 7.3.


Conjugate base of quercetin arising from selective deprotonation of the 7-hydroxy group; major species at pH 7.3.


D-ribitol 5-phosphate(2-)

Dianion of D-ribitol 5-phosphate arising from deprotonation of both phosphate OH groups; major species at pH 7.3.


deaminohydroxyblasticidin S(1+)

Conjugate acid of deaminohydroxyblasticidin S having an anionic carboxy group and protonated primary amino and guanidino groups; major species at pH 7.3.


Dicarboxylate anion of 2-(acetamidomethylidene)succinic acid; major species at pH 7.3.


An ammonium ion that is the conjugate acid of L-histidinol arising from protonation of the primary amino function; major species at pH 7.3.


The conjugate base of 2-methyl-3-oxopropanoic acid; major species at pH 7.3.


The conjugate base of 5-O-(1-carboxyvinyl)-3-phosphoshikimic acid. It is an intermediate in the shikimate pathway.


N-acetyl-L-phenylalaninate

The conjugate base of N-acetyl-L-phenylalanine; major species at pH 7.3.


The conjugate base of 2-nitrophenol; major apecies at pH 7.3.


cationic chitosan

Polycationic form of chitosan arising from global protonation of the 2-amino groups; major species at pH 7.3.


Dianion of UDP-N-acetyl-alpha-D-glucosamine arising from deprotonation of both free diphosphate OH groups; major species at pH 7.3.


The conjugate base of 4-oxobutanoic acid; major species at pH 7.3.


Dianion of 2,3-bis-O-(geranylgeranyl)glycerol 1-phosphate; major species at pH 7.3.


benzoylagmatinium

The conjugate acid of benzoylagmatine arising from protonation of the guanidino group; major species at pH 7.3.


Trianion of 2-amino-3-oxo-4-(phosphonooxy)butanoic acid arising from deprotonation of carboxylic acid and phosphate functions; major species at pH 7.3.


Conjugate base of 5,12-dihydroxanthommatin having anionic carboxy groups and a protonated primary amino group.


all-trans-octaprenyl diphosphate(2-)

Trianion of all-trans-octaprenyl diphosphate arising from deprotonation of all three diphosphate OH groups; major species at pH 7.3


Dicarboxylate anion of 2-hydroxy-3-oxoadipic acid; major species at pH 7.3.


Tricarboxylate anion of 3-(2-carboxyethenyl)-cis,cis-muconic acid; major species at pH 7.3.


2-ureidoglycine zwitterion

The zwitterion resulting from the transfer of a proton from the carboxy group to the alpha-amino group of 2-ureidoglycine.


A nucleotide-sugar oxoanion arising from deprotonation of the diphosphate OH groups of UDP-N-acetyl-D-mannosamine; major species at pH 7.3.


O-acetyl-L-homoserine zwitterion

Zwitterionic form of O-acetyl-L-homoserine having an anionic carboxy group and a protonated alpha-amino group; major species at pH 7.3.


Dianion of barbituric acid arising from deprotonation at the N-1 and C-5 positions.


alpha-D-ribose 1-phosphate(2-)

Dianion of alpha-D-ribose 1-phosphate arising from deprotonation of both phosphate OH groups; major species at pH 7.3.


3-amino-L-alanine zwitterion

The zwitterion resulting from the transfer of a proton from the carboxy group to the beta-amino group of 3-amino-L-alanine; major species at pH 7.3.


The conjugate base of N(2),N(5)-dibenzoyl-L-ornithine; major species at pH 7.3.


sucrose 6(F)-phosphate(2-)

Dianion of sucrose 6(F)-phosphate arising from deprotonation of the phosphate OH groups; major species at pH 7.3.


A 2'-deoxyribonucleoside triphosphate oxoanion that is a trianion of 2'-deoxycytidine 5'-triphosphate, arising from deprotonation of three of the four triphosphate OH groups.


D-proline zwitterion

A D-alpha-amino acid zwitterion that is D-proline in which a proton has been transferred from the carboxy group to the amino group. It is the major species at pH 7.3.


Pentacarboxylate anion of N-formylmethanofuran; major species at pH 7.3.


The conjugate acid of morphinone arising from protonation of the tertiary amino group; major species at pH 7.3.


The conjugate base of 3alpha-hydroxyglycyrrhetinic acid; major species at pH 7.3.


A phenolate anion that is the conjugate base of 4-nitrocatechol arising from selective deprotonation of the hydroxy group at the position para to the nitro group; the major species at pH 7.3.


(R)-3-aminoisobutyric acid zwitterion

Zwitterionic form of (R)-3-aminoisobutyric acid having an anionic carboxy group and a protonated amino group; major species at pH 7.3.


Tricarboxylate anion of 4-carboxy-2-hydroxyhexa-2,4-dienedioic acid; major species at pH 7.3.


The anion obtained from global deprotonation of the phosphate OH groups of myo-inositol 1,3,4,5,6-pentakisphosphate; major species at pH 7.3.


alpha-D-hexose 1-phosphate(2-)

The dianion of any alpha-D-hexose 1-phosphate arising from deprotonation of the phosphate OH groups; major species at pH 7.3.


The conjugate base of 2-oxosuccinamic acid; major species at pH 7.3.


A trianionic form of UDP-N-acetylmuramoyl-L-alanyl-D-gamma-glutamyl-L-lysine having anionic carboxylic acid and diphosphate groups and a protonated primary amino group (at the side-chain of the lysine residue; major species at pH7.3.


D-xylulose 5-phosphate(2-)

An organophosphate oxoanion that is the dianion of D-xylulose 5-phosphate arising from deprotonation of the phosphate OH groups; major species at pH 7.3.


A class of carboxylic acid anions of general formula RCHCH3C(=O)O(-) where R represents an aryl group.


An ionic phospholipid that is a dianion of a phosphatidic acid arising from deprotonation of both phosphate OH groups.


The conjugate base of L-5-carboxymethylhydantoin; major species at pH 7.3.


phenylethanolaminium

An  ammonium ion that is the conjugate acid of phenylethanolamine arising from protonation of the primary amino group; major species at pH 7.3.


Trianion of 2-(alpha-D-mannosyl)-3-phosphoglyceric acid arising from deprotonation of carboxylic acid and phosphate functions; major species at pH 7.3.


The conjugate base of 4-hydroxy-1-pyrroline-2-carboxylic acid; major species at pH 7.3.


3',5'-cyclic GMP(1-)

The conjugate base of guanosine 3',5'-cyclic phosphate arising from deprotonation of the free phosphate OH group; major species at pH 7.3.


3-(pyrazol-1-yl)-L-alanine zwitterion

Zwitterionic form of 3-(pyrazol-1-yl)-L-alanine having an anionic carboxy group and a protonated alpha-amino group; major species at pH 7.3.


hydralazine

The 1-hydrazino derivative of phthalazine; a direct-acting vasodilator that is used as an antihypertensive agent.


N(tele)-methyl-L-histidinium residue

N(tele)-methyl-L-histidine residue protonated on the alpha-nitrogen.


Dianion of a CDP-acylglycerol arising from deprotonation of both phosphate OH groups.


The conjugate base of (S)-3-(imidazol-5-yl)lactic acid; major species at pH 7.3.


A vinca alkaloid cation that is the conjugate acid of vindoline; major species at pH 7.3.


A hydroxy monocarboxylic acid anion that is the conjugate base of trans-5-O-caffeoyl-D-quinic acid; major species at pH 7.3.


(R)-N-methylcoclaurinium

The conjugate acid of (R)-N-methylcoclaurine arising from protonation of the tertiary amino group; major species at pH 7.3.


The cationic sphingoid resulting from the protonation of the amino group of sphingosine.


D-threonine zwitterion

A D-alpha-amino acid zwitterion that is D-threonine in which a proton has been transferred from the carboxy group to the amino group. It is the major species at pH 7.3.


The conjugate base of N(3)-oxalyl-L-2,3-diaminopropionic acid having anionic carboxy groups and a protonated primary amino group; major species at pH 7.3.


The conjugate base of gossypetin arising from selective deprotonation of the hydroxy group at the 3-position; major species at pH 7.3.


HYDRANGENOL

A member of the class of dihydroisocoumarins that is 3,4-dihydroisocoumarin substituted by a hydroxy group at position 8 and a 4-hydroxyphenyl group at position 3. It has been isolated from the roots of Scorzonera judaica and exhibits anti-allergic activity.


The conjugate base of 3-oxoglycyrrhetinic acid acid; major species at pH 7.3.


An ammonium ion that is the conjugate acid of pyridoxamine arising from selective protonation of the primary amino group; major species at pH 7.3.


The dicarboxylate anion of limonoic acid; major species at pH 7.3.


Dianion of 1-deoxy-D-altro-heptulose 7-phosphate arising from deprotonation of the phosphate OH groups; major species at pH 7.3.


Dianion of 3-(imidazol-4-yl)-2-oxopropyl dihydrogen phosphate arising from deprotonation of both phosphate OH groups; major species at pH 7.3.


mono(glucosyluronic acid)bilirubin(2-)

A dicarboxylic acid dianion resulting from the deprotonation of both of the carboxy groups of mono(glucosyluronic acid)bilirubin; major species at pH 7.3.


The conjugate base of 4-coumaroylshikimic acid; major species at pH 7.3.


Octaanionic form of precorrin-4 arising from global deprotonation of the carboxy groups; major species at pH 7.3.


trans-caffeate

The conjugate base of trans-caffeic acid; major species at pH 7.3.


A nucleotide-sugar oxoanion arising from deprotonation of diphosphate and carboxy groups of UDP-N-acetyl-3-O-(1-carboxyvinyl)-D-glucosamine; major species at pH 7.3.


N-acetyl-L-histidinate

The conjugate base of N-acetyl-L-histidine; major species at pH 7.3.


N-(carboxylatomethyl)-D-alanine

The conjugate base of N-(carboxymethyl)-D-alanine having anionic carboxy groups and a cationic amino group; major species at pH 7.3.


The conjugate base of 2-acetyllactic acid; major species at pH 7.3.


Conjugate base of stipitatonic acid arising from selective deprotonation of the 4-hydroxy group; major species at pH 7.3.


Dianion of N-acetyl-alpha-D-glucosamine 1-phosphate arising from deprotonation of the phosphate OH groups; major species at pH 7.3.


The conjugate base of 1,4,5,6-tetrahydro-6-oxonicotinic acid; major species at pH 7.3.


triacetate lactone oxoanion

Conjugate base of triacetate lactone arising from deprotonation of the 4-hydroxy group; major species at pH 7.3.


Conjugate base of tauropine in which the carboxy and sulfo groups are anionic and the amino group is protonated; major species at pH 7.3.


hydrochlorothiazide

A benzothiadiazine that is 3,4-dihydro-2H-1,2,4-benzothiadiazine 1,1-dioxide substituted by a chloro group at position 6 and a sulfonamide at 7. It is diuretic used for the treatment of hypertension and congestive heart failure.


glycylpeptide zwitterion

A peptide zwitterion that is the zwitterionic form of a glycylpeptide where the amino terminus is positively charged and the carboxy terminus is negatively charged.


N-methylethanolaminium phosphate(1-)

Conjugate base of N-methylethanolamine phosphate having an anionic phosphate group and a protonated amino group; major species at pH 7.3.


cortisol 21-sulfate(1-)

Conjugate base of cortisol 21-sulfate arising from deprotonation of the sulfate OH; major species at pH 7.3.


Tetraanion of NADPH arising from deprotonation of the diphosphate and phosphate OH groups; major species at pH 7.3.


Conjugate base of 2-[3-carboxy-3-(methylammonio)propyl]-L-histidine where both carboxy groups are anionic and both the primary and secondary amino groups are protonated; major species at pH 7.3.


decaprenol phosphate(2-)

Dianion of decaprenol phosphate arising from deprotonation of the phosphate OH groups; major species at pH 7.3.


streptomycin 6-phosphate(1+)

Conjugate acid of streptomycin 6-phosphate arising from deprotonation of the phosphate OH groups and protonation of the secondary amino and both guanidino groups; major species at pH 7.3.


isonocardicin A(1-)

Conjugate base of isonocardicin A zwitterion where both carboxy groups are deprotonated while the homoserine amino group is protonated.


hydrocodone

A morphinane-like compound that is a semi-synthetic opioid synthesized from codeine.


benzyl cetraxate(1+)

The conjugate acid of benzyl cetraxate; major species at pH 7.3.


1-deoxy-D-xylulose 5-phosphate(2-)

Dianion of 1-deoxy-D-xylulose 5-phosphate arising from deprotonation of both phosphate OH groups; major species at pH 7.3.


A 2'-deoxyribonucleoside triphosphate oxoanion that is a trianion of dGTP, arising from deprotonation of three of the four triphosphate OH groups.


The trianion of a 1-phosphatidyl-1D-myo-inositol 5-phosphate.


dihydrostreptomycin 6-phosphate(1+)

Conjugate acid of dihydrostreptomycin 6-phosphate arising from deprotonation of the phosphate OH groups and protonation of the secondary amino and both guanidino groups; major species at pH 7.3.


Decaanion of 1D-myo-inositol 1,2,4,5,6-pentakisphosphate arising from global deprotonation of the phosphate OH groups; major species at pH 7.3.


A flavonoid oxoanion that is the conjugate base of 4',5,7-trihydroxy-3'-methoxyflavone arising from selective deprotonation of the 7-hydroxy group; major species at pH 7.3.


Trianion of 3-ADP-glyceric acid arising from deprotonation of phosphate and carboxy groups; major species at pH 7.3.


A trivalent inorganic anion obtained by removal of all three protons from cyclotriphosphoric acid.; major species at pH 7.3.


The conjugate acid of L-tryptophanamide arising from protonation of the alpha-amino group; major species at pH 7.3.


Zwitterionic form of L-serine phosphoethanolamine having anionic phosphate and carboxy groups and both amino groups protonated; major species at pH 7.3.


N(2)-acetyl-L-ornithine zwitterion

An amino acid zwitterion of N(2)-acetyl-L-ornithine arising from migration of a proton from the carboxy group to the epsilon-amino group; major species at pH 7.3.


Tetraanion of UDP-N-acetyl-D-galactosamine 4,6-bissulfate arising from deprotonation of diphosphate and sulfate groups; major species at pH 7.3.


A nucleotide-sugar oxoanion that is the conjugate base of UDP-2-acetamido-4-amino-2,4,6-trideoxy-D-glucose arising from deprotonation of the phosphate OH groups and protonation of the 4-amino group; major species at pH 7.3.


Conjugate base of xanthommatin having both carboxy groups deprotonated and the amino group protonated; major species at pH 7.3.


N-formyl-L-methioninate

The conjugate base of N-formyl-L-methionine; major species at pH 7.3.


Dianion of UDP-4-dehydro-6-deoxy-D-glucose; major species at pH 7.3.


Trication of sym-homospermidine arising from protonation of all three amino groups; major species at pH 7.3.


Dianion of CMP-N-acetyl-beta-neuraminate arising from deprotonation of carboxylic acid and phosphate functions; major species at pH 7.3.


quercetin 3,3',7-trissulfate(3-)

Trianion of quercetin 3,3',7-trissulfate arising from deprotonation of the three sulfate OH groups.


The conjugate base of triacetic acid; major species at pH 7.3.


A carbohydrate acid derivative anion that is the dianion resulting from the removal of the proton from both of the carboxylic acid groups of luteolin-7-O-[beta-D-glucuronosyl-(1->2)-beta-D-glucuronide].


A cationic sphingoid obtained by protonation of the amino group of sphinganine.


Trianion of 5,10-methylenetetrahydromethanopterin arising from deprotonation of phosphate and carboxy groups; major species at pH 7.3.


Conjugate base of 3-hydroxyquinolin-4(1H)-one arising from deprotonation of the 3-hydroxy group; major species at pH 7.3.


N(6)-hydroxy-L-lysine zwitterion

Zwitterionic form of N(6)-hydroxy-L-lysine having an anionic carboxy group and a cationic amino group; major species at pH 7.3.


D-alanyl-D-alanine zwitterion

A dipeptide zwitterion that is the zwitterionic form of D-alanyl-D-alanine arising from migration of a proton from the OH of the carboxy terminus to the amino terminus.


Dianion of 4-CDP-2-C-methyl-D-erythritol arising from deprotonation of the diphosphate OH groups; major species at pH 7.3.


oxalurate

The conjugate base of oxaluric acid; major species at pH 7.3.


L-lombricine dizwitterion

A zwitterionic form of L-lombricine where the carboxy and phosphate groups are anionic and the amino and guanidino groups are cationic; major species at pH 7.3.


D-hamamelose 2(1)-phosphate(2-)

Dianion of D-hamamelose 2(1)-phosphate arising from deprotonation of the phosphate OH groups; major species at pH 7.3.


L-xylulose 5-phosphate(2-)

An organophosphate oxoanion that is the dianion of L-xylulose 5-phosphate arising from deprotonation of the phosphate OH groups; major species at pH 7.3.


name: cyanidin 3-O-rutinoside 5-O-beta-D-glucoside betaine

description: Conjugate base of cyanidin 3-O-rutinoside 5-O-beta-D-glucoside arising from selective deprotonation of the 7-hydroxy group; major species at pH 7.3.


glycerol 1,2-cyclic phosphate(1-)

Conjugate base of glycerol 1,2-cyclic phosphate; major species at pH 7.3.


The carboxylate anion of a 1,2-diacyl-3-[3-(alpha-D-N-acetylneuraminyl)-beta-D-galactosyl]-sn-glycerol.


Conjugate base of N-benzoyl-4-hydroxyanthranilic acid; major species at pH 7.3.


An ammonium ion that is the trication of spermidine, formed by protonation at all three nitrogens.


Dication of glutathionylspermidine arising from deprotonation of the terminal carboxy group and protonation of the primary and secondary amino groups; major species at pH 7.3.


The heptaanion of a 1-phosphatidyl-1D-myo-inositol 3,4,5-trisphosphate; major species at pH 7.3.


Dianion of dTDP-4-dehydro-6-deoxy-D-galactose arising from deprotonation of the diphosphate OH groups; major species at pH 7.3.


Dianion of N-phosphotaurocyamine arising from deprotonation of phosphoramidate and sulfonate OH groups and protonation of the guanidino group; major species at pH 7.3.


The conjugate base of 3-dehydro-2-deoxy-D-gluconic acid; major species at pH 7.3.


hydroflumethiazide

A benzothiadiazine consisting of a 3,4-dihydro-HH-1,2,4-benzothiadiazine bicyclic system dioxygenated on sulfur and carrying trifluoromethyl and aminosulfonyl groups at positions 6 and 7 respectively. A diuretic with actions and uses similar to those of hydrochlorothiazide.


methylguanidinium

A guanidinium ion that is the conjugate acid of methylguanidine; major species at pH 7.3.


Trianion of 4-amino-2-methyl-5-diphosphooxymethylpyrimidine arising from deprotonation of the diphosphate OH groups; major species at pH 7.3.


vitexin 2''-O-beta-D-glucoside(1-)

Conjugate base of vitexin 2''-O-beta-D-glucoside arising from selective deprotonation of the 7-hydroxy group; major species at pH 7.3.


Octaanion of preuroporphyrinogen arising from global deprotonation of the eight carboxy groups; major species at pH 7.3.


L-fuculose 1-phosphate(2-)

Dianion of L-fuculose 1-phosphate arising from deprotonation of the phosphate OH groups; major species at pH 7.3.


Dianion of UDP-N-acetyl-D-galactosamine arising from deprotonation of the diphosphate OH groups; major species at pH 7.3.


Dication of 1,4-diguanidinobutane arising from deprotonation of both guanidino groups; major species at pH 7.3.


Conjugate base of (R)-4-dehydropantoic acid; major species at pH 7.3.


A monocarboxylic acid anion that is the conjugate base of 3-O-(4-deoxy-alpha-L-threo-hex-4-enopyranosyluronic acid)-D-galactosamine; major species at pH 7.3.


tropiniumone

Conjugate acid of tropinone; major species at pH 7.3.


A  dicarboxylic acid dianion that is the conjugate base of  prephenic acid; major species at pH 7.3.


Conjugate acid of 4-guanidinobutanal; major species at pH 7.3.


A cyclic tetrapyrrole anion that is the conjugate base of protochlorophyllide, arising from deprotonation of the carboxy group.


N-acetyl-beta-alaninate

Conjugate base of N-acetyl-beta-alanine; major species at pH 7.3.


atropinium

An ammonium ion that is the conjugate acid of atropine arising from protonation of the tertiary amino group; major species at pH 7.3.


Dicarboxylate anion of  5-(3-carboxy-3-oxopropenyl)-4,6-dihydroxypyridine-2-carboxylic acid; major species at pH 7.3.


Conjugate base of dethiobiotin; major species at pH 7.3.


diphthamide(2+) residue

Diphthamide residue protonated on the alpha-nitrogen.


Dianion of ADP-D-glycero-D-manno-heptose; major species at pH 7.3.


Conjugate base of 5D-(5/6)-2,6-dihydroxy-5-(hydroxymethyl)cyclohex-2-en-1-one arising from selective deprotonation of the 2-hydroxy group; major species at pH 7.3.


uridine 5'-monophosphate(2-)

A pyrimidine nucleoside 5'-monophosphate(2-) that results from the removal of two protons from the phosphate group of UMP.


Conjugate acid of 3-methylthiopropylamine; major species at pH 7.3.


nucleoside 5'-phosphate dianion

The conjugate base of a nucleoside 5'-phosphate.


An organic sulfamate oxoanion resulting from the removal of the proton from the sulfamic acid group of N-sulfo-D-glucosamine.


6-aminopenicillanic acid zwitterion

Zwitterionic form of 6-aminopenicillanic acid arising from migration of a proton from the carboxy group to the 6-amino group; major species at pH 7.3.


D-ribulose 1,5-bisphosphate(4-)

Tetraanion of D-ribulose 1,5-bisphosphate arising from deprotonation of all four phosphate OH groups; major species at pH 7.3.


The conjugate acid of codeine arising from protonation of the tertiary amino group; major species at pH 7.3.


Tricarboxylate anion of (2Z)-but-2-ene-1,2,3-tricarboxylic acid; major species at pH 7.3.


An ammonium ion that is the conjugate acid of (S)-reticuline, arising from protonation of the tertiary amino group; major species at pH 7.3.


An organophosphate oxoanion obtained by deprotonation of the phosphate OH groups of 2-O-(beta-D-glucosyl)-sn-glycerol 3-phosphate; major species at pH 7.3.


The ammonium betaine of a 2-acyl-sn-glycero-3-phosphocholine arising from deprotonation of the phosphate OH; major species at pH 7.3.


Conjugate base of CDP-ethanolamine arising from deprotonation of the phosphate OH groups and protonation of the amino group; major species at pH 7.3.


N-acetyl-D-tryptophanate

The conjugate base of N-acetyl-D-tryptophan; major species at pH 7.3.


An organosulfate oxoanion resulting from the removal of a proton from both the carboxy group and the sulfate group of 2-acetamido-2-deoxy-3-O-(4-deoxy-alpha-L-threo-hex-4-enopyranosyluronic acid)-6-O-sulfo-D-galactopyranose arising from deprotonation of carboxy and sulfate groups; major species at pH 7.3.


4-methylene-L-glutamine zwitterion

Zwitterionic form of 4-methylene-L-glutamine having an anionic carboxy group and a cationic amino group; major species at pH 7.3.


The conjugate base of a 1-phosphatidyl-1D-myo-inositol; major species at pH 7.3.


Conjugate base of erythro-5-phosphonooxy-L-lysine in which the carboxy and phospho groups are anionic and both primary amino groups are cationic; major species at pH 7.3.


A monocarboxylic acid anion that is the conjugate base of 4-carboxymethyl-3-methylbut-2-en-1,4-olide; major species at pH 7.3.


An ammonium betaine that is the conjugate base of 3-dehydrocarnitinium; major species at pH 7.3.


Dianion of 2'-deoxy-5-methyl-5'-cytidylic acid arising from deprotonation of the phosphate OH groups; major species at pH 7.3.


tryptaminium

An  ammonium ion that is the conjugate acid of tryptamine arising from protonation of the primary amino group; major species at pH 7.3.


The conjugate base of 4-carboxymethyl-4-methylbut-2-en-1,4-olide; major species at pH 7.3.


Dizwitterionic form of N(5)-(L-1-carboxyethyl)-L-ornithine having anionic carboxy groups and cationic amino groups; major species at pH 7.3.


adenosine 5'-phosphoramidate(1-)

Conjugate base of adenosine 5'-phosphoramidate; major species at pH 7.3.


The conjugate base of trans-2-chloro-4-carboxymethylenebut-2-en-1,4-olide; major species at pH 7.3.


Dianion of 3-aci-nitropropanoic acid arising from deprotonation of carboxy and nitro groups; major species at pH 7.3.


Conjugate acid of tabersonine arising from protonation of the tertiary amino group; major species at pH 7.3.


Dication of berbamunine arsing from protonation of both tertiary amino groups; major species at pH 7.3.


Octaanion of 1D-myo-inositol 1,3,4,5-tetrakisphosphate arising from global deprotonation of the phosphate OH groups; major species at pH 7.3.


diisopropyl phosphate(1-)

The conjugate base of diisopropyl hydrogen phosphate; major species at pH 7.3.


An organophosphate oxoanion resulting from the deprotonation of the carboxy and phosphate groups of 1-phospho-alpha-D-glucuronic acid; major species at pH 7.3.


Dicarboxylate anion of 15,16-dihydrobiliverdin; major species at pH 7.3.


hydromorphone

A  morphinane alkaloid that is a hydrogenated ketone derivative of morphine. A semi-synthetic drug, it is a centrally acting pain medication of the opioid class.


oxidized Photinus luciferin(1-)

The conjugate base of oxidized Photinus luciferin arising from removal of the acidic proton at the 5-position of the thiazol-4-one ring; major species at pH 7.3.


L-threo-3-phenylserine zwitterion

Zwitterionic form of L-threo-3-phenylserine arising from transfer of a proton from the carboxy to the alpha-amino group; major species at pH 7.3.


The conjugate acid of 1-benzyl-1,2,3,4-tetrahydroisoquinoline arising from protonation of the amino group; major species at pH 7.3.


Trianion of [1-(5-phosphoribosyl)imidazol-4-yl]acetic acid arising from deprotonation of the carboxy and phosphate groups; major species at pH 7.3.


D-glucose 6-sulfate(1-)

Conjugate base of D-glucose 6-sulfate; major species at pH 7.3.


dehydroepiandrosterone sulfate(1-)

The conjugate base of 3beta-hydroxyandrost-5-en-17-one 3-sulfate arising from deprotonation of the sulfate OH group; major species at pH 7.3.


The conjugate base of trans-4-hydroxycyclohexanecarboxylic acid; major species at pH 7.3.


all-trans-pentaprenyl diphosphate(3-)

The trianion resulting from the removal of the three protons from the diphosphate group of all-trans-pentaprenyl diphosphate; major species at pH 7.3.


N-benzoyl-D-arginine zwitterion

Zwitterionic form of N-benzoyl-D-arginine resulting from transfer of a proton from the carboxy to the guanidino group; major species at pH 7.3.


kanamycin A 3'-phosphate(2+)

The doubly positive charged ammonium ion obtained from protonation of the four amino groups and deprotonation of the phosphate OH groups of kanamycin A 3'-phosphate; major species at pH 7.3.


The oxoanion obtained by selective deprotonation of the 7-hydroxy group of kievitone; major species at pH 7.3.


The conjugate base of L-gamma-glutamyl-D-alanine arising from deprotonation of both carboxy groups and protonation of the glutamyl amino group; major species at pH 7.3.


A 3-methoxy-4-hydroxy-5-all-trans-polyprenylbenzoate in which the polyprenyl chain contains 6 prenyl units; major species at pH 7.3.


A phenolate anion that is the conjugate base of 4-nitrophenol; major species at pH 7.3.


alpha-ribazole 5'-phosphate(2-)

Dianion of alpha-ribazole 5'-phosphate arising from deprotonation of the phosphate OH groups; major species at pH 7.3.


Tetraanion of 4-CDP-2-C-methyl-D-erythritol 2-phosphate arising from deprotonation of phosphate and diphosphate groups; major species at pH 7.3.


The ammonium ion resulting from protonation of all three amino groups of bis(3-aminopropyl)amine; major species at pH 7.3.


Cationic compound arising from protonation of an N(3')-acetyl-2-deoxystreptamine antibiotic.


coenzyme gamma-F420-2(5-)

The penta-anion obtained by removing protons from the imide nitrogen, phosphate, and carboxylic acid groups of coenzyme gamma-F420-2.


The pentaanion of a 1-phosphatidyl-1D-myo-inositol 3,5-bisphosphate.


L-dopaquinone zwitterion

Zwitterionic form of L-dopaquinone arising from transfer of a proton from the carboxy to the amino group; major species at pH 7.3.


A peptide anion obtained by deprotonation of both carboxy groups and protonation of the glutamyl amino group of glutathione; major species at pH 7.3.


oxaloacetate 4-methyl ester

Conjugate base of oxaloacetic acid 4-methyl ester; major species at pH 7.3.


The conjugate base of 3',4',5,7-tetrahydroxy-3-methoxyflavone arising from selective deprotonation of the 7-hydroxy group; major species at pH 7.3.


7''-O-phosphohygromycin B(1+)

Conjugate acid of 7''-O-phosphohygromycin B arising from protonation of the three amino groups and deprotonation of the phosphate OH groups; major species at pH 7.3.


nucleoside 5'-diphosphate(3-)

Trianion of nucleoside diphosphate arising from deprotonation of all three free OH groups of the diphosphate; major species at pH 7.3.


A nucleotide-sugar oxoanion that is the dianion of D-ribofuranosyl-ADP arising from deprotonation of the diphosphate OH groups; major species at pH 7.3.


D-methionine zwitterion

Zwitterionic form of D-methionine arising from transfer of a proton from the carboxy to the amino group; major species at pH 7.3.


The conjugate acid of oleandomycin arising from protonation of the tertiary amino group; major species at pH 7.3.


The ammonium ion resulting from the protonation of the amino group of psychosine.


oxidized Watasenia luciferin(2-)

Dianion of oxidized Watasenia luciferin arising from deprotonation of both sulfate OH groups; major species at pH 7.3.


N-acetyl-L-gamma-glutamyl phosphate(3-)

Trianion of N-acetyl-L-gamma-glutamyl phosphate arising from deprotonation of carboxy and phosphate groups; major species at pH 7.3.


Dicarboxylate anion of 2-aminomuconic acid; major species at pH 7.3.


trans-3-hydroxy-L-proline zwitterion

Zwitterionic form of trans-3-hydroxy-L-proline resulting from transfer of a proton from the carboxy to the amino group; major species at pH 7.3.


sphinganine 1-phosphate

The anion resulting from the addition of a proton to the amino group and the removal of the two acidic protons from the phosphate group of sphinganine 1-phosphate.


An organosulfonate oxoanion and 2-oxo monocarboxylic acid anion that is obtained from 3-sulfopyruvic acid by deprotonation of the carboxylic acid and sulfonic acid groups; major species at pH 7.3.


Dianion of NADH arising from deprotonation of the two diphosphate OH groups; major species at pH 7.3.


N-methylphenylethanolaminium

An ammonium ion that is the conjugate acid of N-methylphenylethanolamine; major species at pH 7.3.


The conjugate base of 5-oxo-D-proline; major species at pH 7.3.


Trianion of 6-phospho-5-dehydro-2-deoxy-D-gluconic acid arising from deprotonation of the carboxy and phosphate groups; major species at pH 7.3.


The conjugate acid of 2,5-diaminohexanoic acid resulting from protonation of both amino groups and deprotonation of the carboxy group; major species at pH 7.3.


The conjugate base of L-saccharopine arising from deprotonation of all three carboxy groups and protonation of the primary and secondary amino groups; major species at pH 7.3.


Zwitterionic form of sn-glycero-3-phosphoethanolamine arising from transfer of a proton from the phospho to the amino group; major species at pH 7.3.


Trianion of UDP-N-acetylmuramoyl-L-alanine arising from deprotonation of diphosphate and alanine carboxy groups; major species at pH 7.3.


The conjugate base of 3-cyano-L-alanine; major species at pH 7.3.


Dianion of 6-O-phosphono-D-glucono-1,5-lactone arising from deprotonation of the phosphate OH groups; major species at pH 7.3.


Zwitterionic form of 3-amino-3-(4-hydroxyphenyl)propanoic acid arising from migration of a proton fron the carboxy to the amino group; major species at pH 7.3.


lipid X(2-)

Dianion of lipid X arising from deprotonation of the phosphate OH groups; major species at pH 7.3.


The conjugate base of 3-dehydro-L-threonic acid; major species at pH 7.3.


Dianion of 5-hydroxymethyldeoxycytidylic acid arising from deprotonation of the phosphate OH groups; major species at pH 7.3.


Conjugate base of vitexin arising from deprotonation of the 7-hydroxy group; major species at pH 7.3.


Dianion of GDP-4-dehydro-6-deoxy-alpha-D-mannose arising from deprotonation of the phosphate OH groups; major species at pH 7.3.


The conjugate acid of deacetoxyvindoline arising from protonation of the tertiary amino group; major species at pH 7.3.


A nucleotide-sugar oxoanion that is the dianion of ADP-D-ribose(2-) arising from deprotonation of the phosphate OH groups; major species at pH 7.3.


Tetraanion of UDP-N-acetylmuramoyl-L-alanyl-D-glutamic acid arising from deprotonation of the diphosphate and glutamate carboxy groups; major species at pH 7.3.


Conjugate base of imidazol-4-ylacetic acid; major species at pH 7.3.


1-acyl-sn-glycerol 3-phosphate(2-)

Dianion of a 1-acyl-sn-glycerol 3-phosphate arising from deprotonation of both phosphate OH groups; major species at pH 7.3.


hygromycin B(3+)

An ammonium ion that is the trication of hygromycin B arising from protonation of the three amino groups; major species at pH 7.3.


leukotriene C4(2-)

The leukotriene anion that is the dianion of leukotriene C4 arising from deprotonation of the three carboxy groups and protonation of the glutamyl alpha-amino group.


Zwitterionic form of O-(3-O-D-galactosyl-N-acetyl-beta-D-galactosaminyl)-L-serine arising from transfer of a proton from the carboxy to the amino group; major species at pH 7.3.


A pyridinium ion having methyl and 2-hydroxyethyl groups at positions 2 and 3 respectively as well as a 4-hydroxy-2-methylpyrimid-5-ylmethyl attached to the nitrogen.


Trianion of 2-(carboxymethyl)-5-oxo-2,5-dihydro-3-furoic acid arising from deprotonation of the two carboxy groups as well as removal of the acidic proton at C2; major species at pH 7.3.


A dicarboxylic acid dianion obtained by deprotonation of the two carboxy groups of bilirubin; major species at pH 7.3.


The conjugate base of 2-hydroxy-3-oxopropanoic acid; major species at pH 7.3.


Dicarboxylate anion of 2-(carboxymethyl)-5-oxo-2,5-dihydro-2-furoic acid.


L-histidinol phosphate(1-)

Conjugate base of L-histidinol phosphate having an anionic phosphate and a catoinic amino group; major species at pH 7.3.


D-phenylalanine zwitterion

A D-alpha-amino acid zwitterion that is D-phenylalanine in which a proton has been transferred from the carboxy group to the amino group. It is the major species at pH 7.3.


A 1,2-diacyl-sn-glycero 3-phosphocholine in which the acyl group at position 1 is unspecified while that at position 2 is specified as (S)-12-hydroxyoleoyl.


Dianion of GDP-L-fucose arising from deprotonation of the diphosphate OH groups; major species at pH 7.3.


S-inosyl-L-homocysteine zwitterion

Zwitterionic form of S-inosyl-L-homocysteine arising from transfer of a proton from the carboxy to the amino group; major species at pH 7.3.


An organic anion that is the conjugate base of riboflavin resulting from the removal of a proton from the nitrogen at position 3 (between the two carbonyl groups). Major microspecies at pH 7.3.


Dicarboxylate anion of 2-hydroxyadipic acid; major species at pH 7.3.


allysine zwitterion

Zwitterionic form of allysine arising from transfer of a proton from the carboxy to the amino group; major species at pH 7.3.


The conjugate base of 2-dehydro-3-deoxy-D-galactonic acid; major species at pH 7.3.


The conjugate base of 2-dehydro-3-deoxy-D-gluconic acid; major species at pH 7.3.


Dicarboxylate anion of biliverdin; major species at pH 7.3.


Tricarboxylate anion of (carboxymethoxy)succinic acid; major species at pH 7.3.


The conjugate acid of (S)-N-methylcoclaurine; major species at pH 7.3.


Dianion of tetrachlorohydroquinone arising from deprotonation of both phenol groups; major species at pH 7.3.


all-trans-undecaprenyl diphosphate(3-)

Trianion of all-trans-undecaprenyl diphosphate arising from deprotonation of the diphosphate OH groups; major species at pH 7.3.


The conjugate acid of nororientaline; major species at pH 7.3.


Zwitterionic form of a 6-(alpha-D-glucosaminyl)-1-phosphatidyl-1D-myo-inositol arising from deprotonation of the phosphate OH.


Trianion of 3-phosphoglyceric acid arising from deprotonation of the carboxy and phosphate groups; major species at pH 7.3.


Trianion of 1-carboxyvinyl carboxyphosphonate arising from deprotonation of the carboxy and phosphonate groups; major species at pH 7.3.


D-glutamine zwitterion

Zwitterionic form of D-glutamine arising from transfer of a proton from the carboxy to the amino group; major species at pH 7.3.


primary aliphatic ammonium ion

The conjugate acid of a primary aliphatic amine.


L-erythrulose 1-phosphate(2-)

Dianion of L-erythrulose 1-phosphate arising from deprotonation of the phosphate OH groups; major species at pH 7.3.


3',5'-cyclic CMP(1-)

The conjugate base of 3',5'-cyclic CMP; major species at pH 7.3.


Tetraanion of 3-hydroxy-3-(4-hydroxy-3-methoxyphenyl)propanoyl-CoA arising from deprotonation of the phosphate and diphosphate OH groups; major species at pH 7.3.


Conjugate base of N-amidino-L-aspartate arising from deprotonation of the carboxy groups and protonation of the guanidino group; major species at pH 7.3.


Cypridina luciferin(1+)

Conjugate acid of Cypridina luciferin; major species at pH 7.3.


Trication of streptomycin arising from protonation of the guanidino and secondary amino groups.


A monocarboxylic acid anion resulting from deprotonation of the carboxy group of 2-carboxy-D-arabinitol; major species at pH 7.3.


The conjugate base of L-gamma-glutamyl-L-cysteinyl-beta-alanine having an anionic carboxy terminus and a zwitterionic gamma-glutamyl residue; major species at pH 7.3.


hydroxychloroquine

An aminoquinoline that is chloroquine in which one of the N-ethyl groups is hydroxylated at position 2. An antimalarial with properties similar to chloroquine that acts against erythrocytic forms of malarial parasites, it is mainly used as the sulfate salt for the treatment of lupus erythematosus, rheumatoid arthritis, and light-sensitive skin eruptions.


The conjugate acid of (S)-3'-hydroxy-N-methylcoclaurine; major species at pH 7.3.


(1R,2R,3R)-prephytoene diphosphate(3-)

Trianin of (1R,2R,3R)-prephytoene diphosphate arising from deprotonation of the diphosphate OH groups; major species at pH 7.3.


strictosidine aglycone(1+)

Conjugate acid of strictosidine aglycone arising from deprotonation of the secondary amino group; major species at pH 7.3.


aspulvinone H(1-)

Conjugate base of aspulvinone H arising from selective deprotonation of the butenolide OH group; major species at pH 7.3.


1-alkyl-sn-glycerol 3-phosphate(2-)

The conjugate base of a 1-alkyl-sn-glycerol 3-phosphate compound.


Conjugate base of 7,8-dihydro-7,8-dihydroxykynurenic acid; major species at pH 7.3.


Conjugate acid of 1-guanidino-1-deoxy-scyllo-inositol arising from protonation of the guanidino groups; major species at pH 7.3.


Pentaanion of 5-O-phosphono-alpha-D-ribofuranosyl diphosphate arising from deprotonation of the phosphate and diphosphate OH groups; major species at pH 7.3.


Trianion of N(5)-formyl-5,6,7,8-tetrahydromethanopterin arising from deprotonation of the carboxy and phosphate groups; major species at pH 7.3.


The conjugate base of 2-aminoacrylic acid; major species at pH 7.3.


An aralkylglucosinolate that is the conjugate base of glucotropeolin; major species at pH 7.3.


The conjugate base of 10-oxocapric acid.


The conjugate base of (3,5-diiodo-4-hydroxyphenyl)pyruvic acid; major species at pH 7.3.


deoxylimonoate

The conjugate base of deoxylimonoic acid; major species at pH 7.3.


octopaminium

The conjugate acid of octopamine; major species at pH 7.3.


The conjugate base of 2,8-dihydroxy-1,4-naphthoquinone arising from selective deprotonation of the 2-hydroxy group; major species at pH 7.3.


glyceraldehyde 3-phosphate(2-)

An organophosphate oxoanion taht is the dianion of glyceraldehyde 3-phosphate arising from deprotonation of the phosphate OH groups; major species at pH 7.3.


The conjugate base of 6-O-sulfo-alpha-D-Glc-(1->6)-alpha-D-Glc-(1->6)-alpha-D-Glc-(1->3)-1-O-alkyl-2-O-acylglycerol.


cysteaminium

An ammonium ion that is the conjugate acid of cysteamine; major species at pH 7.3.


Dicarboxylate anion of 5-formyl-2-hydroxyhepta-2,4-dienedioic acid; major species at pH 7.3.


A dizwitterionic form of 2-(3-amino-3-carboxypropyl)-L-histidine arising from transfer of two protons from the carboxy to the amino groups; major species at pH 7.3.


anhydrotetracycline zwitterion

Zwitterionic form of anhydrotetracycline arising from transfer of a proton from the 2-hydroxy to the tertiary amino group; major species at pH 7.3.


Trianion of 2-phosphoglycolic acid arising from deprotonation of the carboxy and phosphate groups; major species at pH 7.3.


Conjugate base of flavonol 3-O-(6-O-malonyl-beta-D-glucoside).


Dication of 1D-3-amino-1-guanidino-1,3-dideoxy-scyllo-inositol arising from protonation of the amino and guanidino groups; major species at pH 7.3.


The conjugate acid of O-demethylpuromycin; major species at pH 7.3.


Photinus luciferin(1-)

The conjugate base of Photinus luciferin; major species at pH 7.3.


2'-deoxyadenosine 3'-monophosphate

A 2'-deoxyadenosine phosphate having a monophosphate group located at the 3'-position.


Dication of N-methylputrescine arising from protonation of both amino groups; major species at pH 7.3.


dimethylaminium

An organic cation that is the conjugate acid of dimethylamine; major species at pH 7.3.


name: heparosan N-sulfate L-iduronate polyanion

description: A carbohydrate acid derivative anion that is a polyanionic form of heparosan N-sulfate L-iduronic acid arising from global deprotonation of the carboxy and N-sulfo groups; major species at pH 7.3.


name: guanidinoethyl methyl phosphate zwitterion

description: Zwitterionic form of guanidinoethyl methyl phosphate arising from transfer of a proton from the phospho to the guanidino group; major species at pH 7.3.


nucleoside 5'-monophosphate(2-)

The dianion of a nucleoside monophosphate: major species at pH 7.3.


A  dihydroxybenzoate that is the conjugate base of 2,5-dihydroxybenzoic acid; major species at pH 7.3.


The conjugate base of 3,5-dibromo-4-hydroxybenzonitrile; major species at pH 7.3.


Zwitterionic form of thiomorpholine-3-carboxylic acid arising from transfer of a proton from the carboxy to the amino group; major species at pH 7.3.


The conjugate base of dolichyl N-acetyl-alpha-D-glucosaminyl phosphate arising from deprotonation of the phosphate OH group; major species at pH 7.3.


Dicarboxylate anion of 4,5-dihydroxyphthalic acid; major species at pH 7.3.


A nucleotide-sugar oxoanion that is a trianion arising from deprotonation of the carboxy and diphosphate OH groups of UDP-alpha-D-glucuronic acid; major species at pH 7.3.


A nucleoside 5'-monophosphate(2-) that results from the removal of two protons from the phosphate group of IMP; major species at pH 7.3.


The conjugate base of 4,5-dioxopentanoic acid; major species at pH 7.3.


Dicarboxylate anion of 2-methylideneglutaric acid; major species at pH 7.3.


geranyl diphosphate(3-)

Trianion of geranyl diphosphate arising from deprotonation of the three OH groups of the diphosphate; major species at pH 7.3.


D-lysopine dizwitterion

A D-alpha-amino acid zwitterion that is D-lysopine arising from transfer of two protons from the carboxy to the amino groups; the major species at pH 7.3.


oxidized Cypridina luciferin(1+)

The conjugate acid of oxidized Cypridina luciferin arising from selective protonation of the guanidino group; major species at pH 7.3.


Trianion of UDP-N-acetyl-6-(D-galactose-1-phospho)-D-glucosamine arising from deprotonation of the phosphate and diphosphate OH groups; major species at pH 7.3.


arketamine

The R- (less active) enantiomer of ketamine.


The conjugate acid of salutaridine; major species at pH 7.3.


rosmarinate

The conjugate base of rosmarinic acid; major species at pH 7.3.


taurocyamine zwitterion

Zwitterionic form of taurocyamine arising from transfer of a proton from the sulfo to the guanidino group; major species at pH 7.3.


L-glutamic 5-semialdehyde zwitterion

Zwitterionic form of homocysteine arising from transfer of a proton from the carboxy to the amino group; major species at pH 7.3.


Conjugate base of (3Z,5S)-3-(1-hydroxyethylidene)-5-{[4-(3-methylbut-2-en-1-yl)-1H-indol-3-yl]methyl}pyrrolidine-2,4-dione arising from deprotonation of the enolic hydroxy group; major species at pH 7.3.


The conjugate base of 2-hydroxy-6-oxohexa-2,4-dienoic acid; major species at pH 7.3.


A nucleoside 5'-diphosphate(3-) arising from deprotonation of the three triphosphate OH groups of cytidine 5'-diphosphate (CDP); major species at pH 7.3.


Conjugate base of dehydroascorbic acid arising from removal of the acidic proton at the  C-2 position; major species at pH 7.3.


mono(2-ethylhexyl) phthalate(1-)

Conjugate base of mono(2-ethylhexyl) phthalate arising from deprotonation of the free carboxy group; major species at pH 7.3.


carbon monoxide(1+)

Conjugate acid of carbon monoxide arising from protonation of the carbon; major species at pH 7.3.


Conjugate base of D-nopaline in which the three carboxy groups are anionic and the secondary amino and guanidino groups are cationic; major species at pH 7.3.


The tricarboxylate anion of 2-hydroxy-4-oxobutane-1,2,4-tricarboxylic acid; major species at pH 7.3.


Dianion of bis-gamma-glutamylcystine arising from deprotonation of all four carboxy groups and protonation of both amino groups; major species at pH 7.3.


Dianion of CDP-3,6-dideoxy-D-mannose arising from deprotonation of the diphosphate OH groups; major species at pH 7.3.


butanoyl phosphate(2-)

Dianion of butanoyl phosphate arising from deprotonation of the phosphate OH groups; major species at pH 7.3.


Zwitterionic form of N(4)-(beta-N-acetyl-D-glucosaminyl)-L-asparagine arising from transfer of a proton from the carboxy to the amino group; major species at pH 7.3.


A nucleotide-sugar oxoanion that is a trianion of dTDP-D-galacturonic acid arising from deprotonation of carboxy and diphosphate OH groups; major species at pH 7.3.


Zwitterionic form of O-(1->4)-alpha-L-dihydrostreptosylstreptidine 6-phosphate arising from transfer of two protons from the phosphate to the guanidino groups; major species at pH 7.3.


glycerol 2-phosphate(2-)

Dianion of glycerol 2-phosphate arising from deprotonation of the phosphate OH groups; major species at pH 7.3.


Dicarboxylate anion of 2-isopropylmaleic acid; major species at pH 7.3.


Trianion of UDP-N-acetylmuramoyl-L-alanyl-gamma-D-glutamyl-L-lysyl-D-alanyl-D-alanine(3-) arising from deprotonation of diphosphate and carboxy groups and protonation of the side-chain amino group of the lysyl residue; major species at pH 7.3.


Dianion of N-succinyl-LL-2,6-diaminopimelic acid having anionic carboxy groups and an ionic primary amino group; major species at pH 7.3.


The trianion of a 1-phosphatidyl-1D-myo-inositol 3-phosphate; major species at pH 7.3.


Conjugate base of 5-phospho-D-ribosylamine having an anionic phosphate and a cationic amino group; major species at pH 7.3.


A L-alpha-amino acid anion that is the conjugate base of L-cysteic acid arising from deprotonation of the carboxy and sulfo groups and protonation of the amino group; major species at pH 7.3.


The ammonium ion resulting from addition of a proton to the nitrogen of deacetylisoipecoside.


Dianion of N-phosphocreatine arising from deprotonation of the phospho and carboxy groups and protonation of the guanidino group; major species at pH 7.3.


homoserinium lactone

The conjugate acid of homoserine lactone; major species at pH 7.3.


dolichyl D-xylosyl phosphate(1-)

Conjugate base of dolichyl D-xylosyl phosphate; major species at pH 7.3.


The conjugate acid of morphine arising from protonation of the tertiary amino group; major species at pH 7.3.


Dicarboxylate anion of 2-dehydro-3-deoxy-D-glucaric acid; major species at pH 7.3.


A nucleotide-sugar oxoanion arising from deprotonation of the phosphate OH groups of dTDP-6-deoxy-L-talose; major species at pH 7.3.


hydroxymethylphosphonic acid

A phosphonic acid having a hydroxymethyl group attached to the phosphorus.


A zwitterionic form of N(6),N(6),N(6)-trimethyl-L-lysinium cation arising from transfer of a proton from the carboxy to the amino group; major species at pH 7.3


Trication of N(1)-acetylspermine arising from protonation of the one primary and two secondary amino groups; major species at pH 7.3.


Dianion of 2-N,6-O-disulfo-D-glucosamine arising from deprotonation of both sulfate OH groups; major species at pH 7.3.


Trianion of 5,6,7,8-tetrahydromethanopterin arising from deprotonation of carboxy and phosphate OH groups; major species at pH 7.3.


nucleoside 5'-triphoshate(3-)

Trianion of nucleoside triphosphate arising from deprotonation of three of the four free triphosphate OH groups.


Zwitterionic form of N(6)-[(indol-3-yl)acetyl]-L-lysine arising from transfer of a proton from the carboxy to the amino group; major species at pH 7.3.


Trianion of UDP-N-acetylmuramoyl-L-alanyl-D-glutamyl-N(6)-(L-alanyl)-L-lysyl-D-alanyl-D-alanine having anionic diphosphate and carboxy groups and a cationic amino group.


The conjugate base of (2-chloro-5-oxo-2,5-dihydro-2-furyl)acetic acid; major species at pH 7.3.


A nucleotide-sugar oxoanion that is the dianion of CDP-3,6-dideoxy-D-glucose, arising from deprotonation of the diphosphate OH groups; major species at pH 7.3.


N(5)-acyl-L-ornithine zwitterion

Zwitterionic form of an N(5)-acyl-L-ornithine arising from transfer of a proton from the carboxy to the amino group; major species at pH 7.3.


cetraxate zwitterion

Zwitterionic form of cetraxate arising from transfer of a proton from the carboxy to the amino group; major species at pH 7.3.


The conjugate acid of L-2-aminohexano-6-lactam; major species at pH 7.3.


Tricarboxylate anion of 2-carboxylato-cis,cis-muconic acid; major species at pH 7.3.


guanosine 5'-monophosphate(2-)

A nucleoside 5'-monophosphate(2-) that results from the removal of two protons from the phosphate group of GMP.


Trianion of 5-methyl-5,6,7,8-tetrahydromethanopterin arising from deprotonation of carboxy and phosphate OH groups; major species at pH 7.3.


Dicarboxylate anion of (S)-2-acetamido-6-oxopimelic acid; major species at pH 7.3.


AGRIMONIIN

A dimeric hydrolysable tannin in which 2 moles of potentillin monomer are linked via a dehydrogalloyl group; an antitumor tannin of Agrimonia pilosa Ledeb., which induces interleukin-1.


L-rhamnonate

A carbohydrate acid anion that is the conjugate base of L-rhamnonic acid; major species at pH 7.3.


Conjugate base of N(4)-phosphoagmatine arising from deprotonation of the N-phospho group and protonation of the guanidino group; major species at pH 7.3.


D-ribulose 5-phosphate(2-)

An organophosphate oxoanion that is the dianion resulting from the removal of two protons from the phosphate group of D-ribulose 5-phosphate.


Zwitterionic form of N(6)-acetyl-N(6)-hydroxy-L-lysine arising from transfer of a proton from the carboxy to the amino group; major species at pH 7.3


name: (2S)-2-hydroxy monocarboxylic acid anion

description: A hydroxy monocarboxylic acid anion where the hydroxy group is placed at position 2 (alpha to the carboxy group) and has (S)-stereochemistry; major species at pH 7.3.


isovitexin 2''-O-beta-D-glucoside(1-)

The conjugate base of isovitexin 2''-O-beta-D-glucoside arising from selective deprotonation of 6-hydroxy group; major species at pH 7.3.


3-hydroxy-L-kynurenine zwitterion

Zwitterionic form of 3-hydroxy-L-kynurenine arising from transfer of a proton from the carboxy to the amino group; major species at pH 7.3


Conjugate base of porphobilinogen arising from deprotonation of the two carboxy groups and protonation of the amino group; major species at pH 7.3.


An NDP-alpha-D-glucose(2-) obtained by deprotonation of the diphosphate OH groups of GDP-D-glucose; major species at pH 7.3.


N(5)-ethyl-L-glutamine zwitterion

An amino acid zwitterion of N(5)-ethyl-L-glutamine arising from transfer of a proton from the carboxy to the amino group; major species at pH 7.3.


cis-caffeate

The conjugate base of cis-caffeic acid; major species at pH 7.3.


myo-inositol hexakisphosphate(12-)

The organophosphate oxoanion formed by loss of 2 protons from each of the phosphate groups of 1D-myo-inositol.


2-methylpropanoyl phosphate(2-)

Dianion of 2-methylpropanoyl phosphate arising from deprotonation of the phosphate OH groups; major species at pH 7.3.


3-chloro-L-alanine zwitterion

Zwitterionic form of 3-chloro-L-alanine arising from transfer of a proton from the carboxy to the amino group; major species at pH 7.3


The conjugate base of 3-(imidazol-5-yl)pyruvic acid; major species at pH 7.3.


The conjugate base of 2-(hydroxymethyl)-4-oxobutanoic acid; major species at pH 7.3.


The conjugate base of 2,5-dioxopentanoic acid; major species at pH 7.3.


Dicarboxylate anion of 3,4-dihydroxyphthalic acid; major species at pH 7.3.


The conjugate acid of N-caffeoylputrescine; major species at pH 7.3.


Dicarboxylate anion of 3-hydroxy-cis,cis-muconic acid; major species at pH 7.3.


Tetracarboxylate anion of tetrahydropteroyltri-L-glutamic acid; major species at pH 7.3.


Tetraanion of P(1),P(4)-bis(5'-adenosyl) tetraphosphate arising from deprotonation of the tetraphosphate OH groups; major species at pH 7.3.


A tricarboxylic acid trianion resulting from deprotonation of the three carboxy groups of 4-carboxy-2-hydroxy-cis,cis-muconic acid; major species at pH 7.3.


A carbohydrate acid anion that is the conjugate base of 5-dehydro-D-gluconic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3.


The conjugate acid of (R)-reticuline; major species at pH 7.3.


The dication resulting from deprotonation of the amino and guanidino groups of agmatine; major species at pH 7.3.


Trianion of (R)-5-phosphomevalonic acid arising from deprotonation of the carboxy and phosphate OH groups; major species at pH 7.3.


The conjugate base of 4-(2-aminophenyl)-2,4-dioxobutanoic acid; major species at pH 7.3.


L-homocitrulline zwitterion

An amino acid zwitterion of L-homocitrulline arising from transfer of a proton from the carboxy to the amino group; major species at pH 7.3.


A hydroxy monocarboxylic acid anion that is the conjugate base of 3-hydroxyphenylacetic acid; major species at pH 7.3.


An organosulfate oxoanion that is a trianion arising from deprotonation of the O-sulfo, N-sulfo and carboxy groups of 3-D-glucuronosyl-N(2),6-disulfo-beta-D-glucosamine; major species at pH 7.3.


Tetraanion of methanofuran arising from deprotonation of all five carboxy groups and protonation of the amino group; major species at pH 7.3.


A hydroxy monocarboxylic acid anion that is the conjugate base of cis-4-coumaric acid; major species at pH 7.3.


A UDP-rhamnose(2-) species in which the rhamnose portion has L-configuration; the major form of UDP-L-rhamnose at pH 7.3.


The conjugate base of N-(2,3-dihydroxybenzoyl)-L-serine; major species at pH 7.3.


N-methyltyraminium

The conjugate acid of N-methyltyramine; major species at pH 7.3.


N-adenylylanthranilate

Dianion of N-adenylylanthranilic acid arising from deprotonation of the carboxy and phosphoramidate OH groups; major species at pH 7.3.


A dicarboxylic acid dianion resulting from the removal of a proton from both of the carboxy groups of 2-O-caffeoylglucaric acid; major species at pH 7.3.


Conjugate base of aminomalonic acid arising from deprotonation of the two carboxy groups and protonation of the amino group; major species at pH 7.3.


The conjugate base of uracil-5-carboxylic acid; major species at pH 7.3.


L-cystathionine dizwitterion

Dizwitterionic form of L-cystathionine arising from transfer of two protons from the carboxy to the amino groups; major species at pH 7.3.


homocystine zwitterion

Dizwitterionic form of homocystine arising from transfer of two protons from the carboxy to the amino groups; major species at pH 7.3.


(S)-atropinium

An organic cation that is the conjugate acid of (S)-atropine arising from protonation of the tertiary amino group; major species at pH 7.3.


3',5'-cyclic AMP(1-)

An organophosphate oxoanion that is the conjugate base of 3',5'-cyclic AMP arising from deprotonation of the free phosphate OH group; major species at pH 7.3.


Dianion of CDP-4-dehydro-6-deoxy-D-glucose arising from deprotonation of the diphosphate OH groups; major species at pH 7.3.


The ammonium betaine of a 1-O-acyl-sn-glycero-3-phosphocholine arising from deprotonation of the phosphate OH; major species at pH 7.3.


Dianion of 2-(alpha-D-galactosyl)-sn-glycerol 3-phosphate; major species at pH 7.3.


psychosine sulfate zwitterion

Zwitterionic form of psychosine sulfate arising from transfer of a proton from the sulfo to the amino group; major species at pH 7.3.


The conjugate base of 7,8-dihydroxykynurenic acid; major species at pH 7.3.


Dianion of dTDP-D-fucose arising from deprotonation of the diphosphate OH groups; major species at pH 7.3.


Conjugate base of L-gamma-glutamyl-L-cysteine arising from deprotonation of both carboxy groups and protonation of the primary amino group; major species at pH 7.3.


Tricarboxylate anion of but-1-ene-1,2,4-tricarboxylic acid; major species at pH 7.3.


N-methyl-L-alanine zwitterion

Zwitterionic form of N-methyl-L-alanine arising from transfer of a proton from the carboxy to the amino group; major species at pH 7.3.


phenylthioacetohydroximate

Conjugate base of phenylthioacetohydroximic acid arising from deprotonation of the acidic SH group; major species at pH 7.3.


testolate

The conjugate base of testolic acid; major species at pH 7.3.


An organophosphate oxoanion arising from deprotonation of the phosphate OH groups of 1-phosphatidyl-1D-myo-inositol-4-phosphate; major species at pH 7.3.


all-trans-hexaprenyl diphosphate(3-)

The trianion resulting from the removal of the three protons from the diphosphate group of all-trans-hexaprenyl diphosphate; major species at pH 7.3.


hydroxyzine

A N-alkylpiperazine that is piperzine in which the nitrogens atoms are substituted by 2-(2-hydroxyethoxy)ethyl and (4-chlorophenyl)(phenyl)methyl groups respectively.


Conjugate base of L-arogenic acid arising from deprotonation of the two carboxy groups and protonation of the amino group; major species at pH 7.3.


The conjugate base of trans-beta-D-glucosyl-2-hydroxycinnamic acid; major species at pH 7.3.


The conjugate acid of (S)-6-hydroxynicotine; major species at pH 7.3.


6-amino-2-oxohexanoic acid zwitterion

Zwitterionic form of 6-amino-2-oxohexanoic acid arising from transfer of a proton from the carboxy to the amino group; major species at pH 7.3.


Conjugate acid of L-tyrosyl-L-arginine arising from deprotonation of the carboxy terminus and protonation of the side-chain guanidino group and the amino terminus; major species at pH 7.3.


An organophosphate oxoanion that is a trianion resulting from the deprotonation of the carboxy and phosphate OH groups of 2-carboxy-D-arabinitol 1-phosphate; major species at pH 7.3.


An organophosphate oxoanion resulting from the deprotonation of the carboxy group and the phosphate OH groups of 1-phospho-alpha-D-galacturonic acid. The major species at pH 7.3.


alginate

The ionic polymer obtained by global deprotonation of the carboxy groups of alginic acid; major species at pH 7.3.


Trianion of UDP-N-acetyl-D-galactosamine 4-sulfate arising from deprotonation of the sulfate and phosphate OH groups; major species at pH 7.3.


A nucleoside 5'-diphosphate(3-) obtained by deprotonation of the three diphosphate OH groups of guanosine 5'-diphosphate (GMP); major species at pH 7.3.


phosphoethanolamine

An organophosphate oxoanion that is the conjugate base of O-phosphoethanolamine arising from deprotonation of the phosphate OH groups and protonation of the amino group; major species at pH 7.3.


Dianion of a 1-alkyl-2-acetyl-sn-glycerol 3-phosphate arising from deprotonation of both phosphate OH groups.


Conjugate base of quercitrin arising from selective deprotonation of the 7-hydroxy group; major species at pH 7.3.


Conjugate base of 3alpha(S)-strictosidine arising from protonation of the secondary amino group; major species at pH 7.3.


biochanin A(1-)

Conjugate base of biochanin A arising from selective deprotonation of the 7-hydroxy group; major species at pH 7.3.


Zwitterionic form of S-(5-deoxy-D-ribos-5-yl)-L-homocysteine arising from transfer of a proton from the carboxy to the amino group; major species at pH 7.3.


Conjugate base of (3R)-3-hydroxy-L-aspartic acid arising from deprotonation of the two carboxy groups and protonation of the amino group; major species at pH 7.3.


L-homocysteine zwitterion

An amino acid zwitterion arising from transfer of a proton from the carboxy to the amino group of L-homocysteine; major species at pH 7.3.


N(5)-methyl-L-glutamine zwitterion

The amino acid zwitterion arising from transfer of a proton from the carboxy to the amino group of N(5)-methyl-L-glutamine; major species at pH 7.3.


The anion formed from 6,7-dimethyl-8-(1-D-ribityl)lumazine by removal of a proton from the nitrogen at position 3 (i.e. between the oxo groups).  It is the major species at physiological pH.


An alpha-amino-acid cation that is the conjugate base of N(6)-methyl-L-lysine, arising from protonation of the two amino groups and deprotonation of the carboxylic acid; major species at pH 7.3.


A benzoate anion arising from deprotonation of the carboxy group of 2-formylbenzoic acid; major species at pH 7.3.


A monocarboxylic acid anion that is the conjugate base 3-nitroacrylic acid, formed by deprotonation of the carboxy group; major species at pH 7.3.


all-trans-heptaprenyl diphosphate(3-)

An organophosphate oxoanion arising from deprotonation of the diphosphate OH groups of all-trans-heptaprenyl diphosphate; major species at pH 7.3.


A peptide anion arising from deprotonation of all four carboxy groups of 5-methyltetrahydropteroyltri-L-glutamic acid; major species at pH 7.3.


An amino acid zwitterion arising from transfer of a proton from the carboxy to the amino group of 4-(3-methylbut-2-enyl)-L-tryptophan; major species at pH 7.3.


The trianion arising from deprotonation of the diphosphate hydroxy groups and the imide nitrogen of flavin mononucleotide (FMN). Major species at pH 7.3.


dolichyl beta-D-mannosyl phosphate(1-)

An organophosphate oxoanion that is the conjugate base of dolichyl beta-D-mannosyl phosphate, arising from deprotonation of the phosphate OH group; major species at pH 7.3.


A 2'-deoxyribonucleoside triphosphate oxoanion arising from deprotonation of three of the four triphosphate OH groups of 2'-deoxyuridine 5'-triphosphate.


myriocin

An amino acid-based antibiotic derived from certain thermophilic fungi; acts as a potent inhibitor of serine palmitoyltransferase, the first step in sphingosine biosynthesis. Myriocin also possesses immunosuppressant activity.


ammonioacetaldehyde

An organic cation that is the conjugate acid of aminoacetaldehyde, arising from protonation of the amino group; major species at pH 7.3.


kanamycin A(4+)

A quadruply-charged organic cation arising from protonation of the four amino groups of kanamycin A; major species at pH 7.3.


guanosine 3',5'-bis(diphosphate)(6-)

An organophosphate oxoanion arising from deprotonation of the six diphosphate OH groups of guanosine 3',5'-bis(diphosphate); major species at pH 7.3.


pentachlorophenolate

A phenolate anion that is the conjugate base of pentachlorophenol; major species at pH 7.3.


A hydroxy monocarboxylic acid anion that is the conjugate base of 9-riburonosylhypoxanthine; major species at pH 7.3.


mevaldate

A hydroxy monocarboxylic acid anion corresponding to the conjugate base of mevaldic acid; major species at pH 7.3.


A doubly-charged alpha-amino-acid anion arising from deprotonation of the carboxy and phosphate groups of N-adenylyl-L-phenylalanine; major species at pH 7.3.


A 2-oxo monocarboxylic acid corresponding to the conjugate base of 4-hydroxy-2-oxopentanoic acid; major species at pH 7.3.


A nucleoside 5'-diphosphate(3-) arising from deprotonation of the diphosphate OH groups of uridine 5'-diphosphate (UDP); major species at pH 7.3.


A doubly-charged nucleotide-sugar oxoanion arising from deprotonation of the diphosphate OH groups of GDP-6-deoxy-alpha-D-mannose: major species at pH 7.3.


alpha-D-glucose 6-phosphate(2-)

A D-glucopyranose 6-phosphate(2-) obtaned by deprotonation of the phosphate OH groups of alpha-D-glucose 6-phosphate; major species at pH 7.3.


L-ribulose 5-phosphate(2-)

A doubly-charged organophosphate oxoanion arising from deprotonation of the phosphate OH groups of L-ribulose 5-phosphate; major species at pH 7.3.


An alpha-amino-acid anion that is the conjugate base of 5-(L-alanin-3-yl)-2-hydroxy-cis,cis-muconate 6-semialdehyde, having anionic carboxy gropus and a cationic amino group; major species at pH 7.3.


carbamoyl phosphate(2-)

A doubly-charged organophosphate oxoanion arising from deprotonation of the phosphate OH groups of carbamoyl phosphate; major species at pH 7.3.


Watasenia luciferin(2-)

A doubly-charged organosulfate oxoanion arising from deprotonation of both sulfo groups of Watasenia luciferin; major species at pH 7.3.


A carbohydrate acid anion arising from deprotonation of both carboxy groups of 2-(beta-D-glucopyranosyluronic acid)-D-glucuronic acid; major species at pH 7.3.


A ribonucleoside triphosphate oxoanion arising from deprotonation of three of the four triphosphate OH groups of cytidine 5'-triphosphate; major species at pH 7.3.


D-glucose 1,6-bisphosphate(4-)

A quadruply-charged organophosphate oxoanion obtained via deprotonation of the phosphate OH groups of D-glucose 1,6-bisphosphate; major species at pH 7.3.


A nucleotide-sugar oxoanion arising from deprotonation of the diphosphate and carboxy groups of UDP-L-iduronic acid; major species at pH 7.3.


An organic cation that is the conjugate acid of 3-hydroxyquinine, formed via protonation of the tertiary amino group; major species at pH 7.3.


N-feruloylglycinate

An N-acylglycinate that is the conjugate base of N-feruloylglycine; major species at pH 7.3.


A dicarboxylic acid dianion arising from deprotonation of the carboxy groups of cis-4,5-dihydroxycyclohexa-2,6-diene-1,2-dicarboxylic acid; major species at pH 7.3.


A monocarboxylic acid anion resulting from the removal of a proton from the carboxy group of 4-methoxy-1-methyl-2-oxo-1,2-dihydropyridine-3-carboxylic acid; major species at pH 7.3.


The indole alkaloid cation that is the conjugate acid of 16-hydroxytabersonine, arising from protonation of the tertiary amino function; major species at pH 7.3.


aspulvinone E(1-)

An organic anion that is the conjugate base of aspulvinone E, arising from selective deprotonation of the butenolide OH group; major species at pH 7.3.


An N-acyl-L-alpha-amino acid anion that is the conjugate base of N(2)-succinyl-L-arginine, arising from deprotonation of the carboxy groups and protonation of the amino group; major species at pH 7.3.


Renilla luciferyl sulfate(1-)

An organosulfate oxoanion that is the conjugate base of Renilla luciferyl sulfate; major species at pH 7.3.


5'-adenylyl sulfate(2-)

An organic dianion arising from deprotonation of the phosphate and sufate groups of 5'-adenylyl sulfate; major species at pH 7.3.


nocardicin A(1-)

An alpha-amino-acid anion that is the conjugate base of nocardicin A, arising from deprotonation of the carboxy groups and protonation of the amino group.


2'-deoxyadenosine 5'-monophosphate(2-)

A 2'-deoxyribonucleoside 5'-monophosphate(2-) obtained by deprotonation of the phosphate OH groups of 2'-deoxyadenosine 5'-monophosphate (dAMP).


sulfonatoacetaldehyde

An organosulfonate oxoanion that is the conjugate base of sulfoacetaldehyde; major species at pH 7.3.


beta-D-glucose 6-phosphate(2-)

A doubly-charged organophosphate oxoanion arising from deprotonation of the phosphate OH groups of beta-D-glucose 6-phosphate; major species at pH 7.3.


An organophosphate oxoanion arising from deprotonation of the phospho and carboxy groups of 2,3-bisphospho-D-glyceric acid; major species at pH 7.3.


(S,S,S)-nicotianamine trizwitterion

An amino acid zwitterion resulting from transfer of three protons from the carboxy to the amino groups of (S,S,S)-nicotianamine. One of two major microspecies at physiological pH.


N,N-dimethylglycine zwitterion

An amino acid zwitterion resulting from transfer of a proton from the carboxy to the amino group of N,N-dimethylglycine; major species at pH 7.3.


S-methyl-L-methionine zwitterion

A sulfonium compound that is a tautomer of S-methyl-L-methionine, arising from transfer of a proton from the carboxy to the amino group; major species at pH 7.3.


An organic cation that is the conjugate base of (S)-norcoclaurine: major species at pH 7.3.


quercetin 3-sulfate(2-)

A flavonoid oxoanion arising from deprotonation of the 7-hydroxy and sufo groups of quercetin 3-sulfate; major species at pH 7.3.


aldehydo-D-galactose 6-phosphate(2-)

An doubly-charged organophosphate oxoanion arising from deprotonation of the phosphate OH groups of aldehydo-D-galactose 6-phosphate; major species at pH 7.3.


alpha-cyclopiazonate

An organic anion that is the conjugate base of alpha-cyclopiazonic acid; major species at pH 7.3.


S-(4-bromophenyl)-L-cysteine zwitterion

An amino acid zwitterion obtained via transfer of a proton from the carboxy to the amino group of S-(4-bromophenyl)-L-cysteine; major species at pH 7.3.


An organophosphate oxoanion that is the conjugate base of dihydrostreptomycin 3'alpha,6-bisphosphate arising from deprotonation of the phosphate OH groups and protonation of the guanidino and secondary amino groups; major species at pH 7.3.


N(6)-acetyl-L-lysine zwitterion

An amino acid zwitterion obtained via transfer of a proton from the carboxy to the amino group of N(6)-acetyl-L-lysine; major species at pH 7.3.


methyl sulfate(1-)

An organosulfate oxoanion that is the conjugate base of methyl sulfate; major species at pH 7.3.


2-C-methyl-D-erythritol 4-phosphate(2-)

An organophosphate oxoanion arising from deprotonation of the phosphate OH groups of 2-C-methyl-D-erythritol 4-phosphate; major species at pH 7.3.


N-acetylputrescinium

An ammonium ion that is the conjugate acid of N-acetylputrescine; major species at pH 7.3.


An ammonium ion that is the conjugate acid of 4-aminobutanal; major species at pH 7.3.


An oxo dicarboxylic acid dianion arising from deprotonation of both carboxy groups of 2-hydroxy-3-oxosuccinic acid; major species at pH 7.3.


A nucleotide-sugar oxoanion arising from deprotonation of the carboxy and diphosphate OH groups of UDP-N-acetyl-beta-D-mannosaminouronic acid; major species at pH 7.3.


An amino acid zwitterion arising from transfer of a proton from the carboxy to the amino group of 2-amino-2-deoxy-D-gluconic acid; major species at pH 7.3.


HYMEXAZOL

A member of the class of isoxazoles carrying hydroxy and methyl substituents at positions 3 and 5 respectively. It is used worldwide as a systemic soil and seed fungicide for the control of diseases caused by Fusarium, Aphanomyces, Pythium, and Corticium spp. in rice, sugarbeet, fodderbeet, vegetables, cucurbits, and ornamentals.


N-acetyl-L-leucinate

An N-acyl-L-alpha-amino acid anion that is the conjugate base of N-acetyl-L-leucine: major species at pH 7.3.


A nucleotide-sugar oxoanion arising from deprotonation of the diphosphate OH groups of UDP-2,3-bis(3-hydroxytetradecanoyl)-D-glucosamine; major species at pH 7.3.


An organophosphate oxoanion arising from deprotonation of the carboxy and phosphate OH groups of 3-phospho-D-glyceric acid; major species at pH 7.3.


aldehydo-D-ribose 5-phosphate(2-)

An organophosphate oxoanion arising from deprotonation of the phosphate OH groups of aldehydo-D-ribose 5-phosphate; major species at pH 7.3.


L-gamma-glutamyl phosphate(2-)

An organophosphate oxoanion arising from deprotonation of the phospho and carboxy groups and protonation of the amino group of L-gamma-glutamyl phosphate; major species at pH 7.3.


2-methylserine zwitterion

An amino acid zwitterion arising from transfer of a proton from the carboxy to the amino group of 2-methylserine; major species at pH 7.3


An oxo dicarboxylic acid dianion resulting from deprotonation of both carboxy groups of 4-hydroxy-4-methyl-2-oxoglutaric acid; major species at pH 7.3.


An organic anion that is the conjugate base of dehydro-D-arabinono-1,4-lactone, arising from selective deprotonation of the 3-hydroxy group; major species at pH 7.3.


An organophosphate oxoanion arising from deprotonation of the phosphate OH groups of D-erythro-1-(imidazol-4-yl)glycerol 3-phosphate; major species at pH 7.3.


A hydroxy monocarboxylic acid anion that is the conjugate base of 3-(3,4-dihydroxyphenyl)lactic acid; major species at pH 7.3.


A nucleoside 5'-diphosphate(3-) arising from deprotonation of all three OH groups of the diphosphate function of of inosine 5'-diphosphate (IDP); major species at pH 7.3.


1D-myo-inositol 1,4-bisphosphate(4-)

An organophosphate oxoanion arising from deprotonation of the phosphate OH groups of 1D-myo-inositol 1,4-bisphosphate; major species at pH 7.3.


A nucleotide-sugar oxoanion arising from deprotonation of the diphosphate OH groups of CDP-4-dehydro-3,6-dideoxy-D-glucose; major species at pH 7.3.


The 5-oxo monocarboxylic acid anion resulting from the removal of the proton from the carboxylic acid group of 2-hydroxy-6-oxo-6-phenylhexa-2,4-dienoic acid.


7-methylguanosine 5'-phosphate(1-)

An organophosphate oxoanion arising from deprotonation of the phosphate OH groups of 7-methylguanosine 5'-phosphate; major species at pH 7.3.


An organosulfonate oxoanion that is the conjugate base of methyl-CoM, arising from deprotonation of the sulfo group; major species at pH 7.3.


heparosan-N-sulfate D-glucuronate

A carbohydrate acid derivative anion obtained via global deprotonation of the carboxy and sulfo groups of heparosan-N-sulfate D-glucuronic acid; major species at pH 7.3.


An organophosphate oxoanion arising from deprotonation of the phosphate OH and carboxy groups of 2-phospho-D-glyceric acid; major species at pH 7.3.


An organic cation that is the conjugate acid of trypanothione, arising from deprotonation of the carboxy groups and protonation of the primary and secondary amino groups; major species at pH 7.3.


A guanidinium ion that is the conjugate acid of 1D-1-guanidino-1-deoxy-3-dehydro-scyllo-inositol; major species at pH 7.3.


A flavonoid oxoanion that is the conjugate base of (S)-naringenin, arising from selective deprotonation of the 7-hydroxy group; major species at pH 7.3.


The ammonium betaine formed from 1-acyl-2-oleoyl-sn-glycero-3-phosphocholine by deprotonation of the phosphate OH group.


The N-acetyl-D-galactosaminyl group arising from deprotonation of the two carboxy groups of the beta-N-acetylneuraminyl-2,3-beta-D-galactosyl-1,3-(beta-N-acetylneuraminyl-2,6)-N-acetyl-D-galactosaminyl group; major species at pH 7.3.


S-acetylcysteaminium

The organic cation that is the conjugate acid of S-acetylcysteamine; major species at pH 7.3.


An organophosphate oxoanion arising from deprotonation of the phosphate OH groups of 4-methyl-5-(2-phosphonooxyethyl)thiazole; major species at pH 7.3.


glutathione disulfide(2-)

A doubly-charged peptide anion arising from deprotonation of the four carboxy groups and protonation of the two amino groups of glutathione disulfide; major species at pH 7.3.


An organophosphate oxoanion that is a trianion obtained via deprotonation of the carboxy and phosphate OH groups of 6-phospho-2-dehydro-3-deoxy-D-galactonic acid; major species at pH 7.3.


A cationic sphingoid that is the conjugate acid of 3-dehydrosphinganine; major species at pH 7.3.


taurolithocholic acid sulfate(2-)

A steroid sulfate oxoanion arising from deprotonation of both sulfo groups of taurolithocholic acid sulfate; major species at pH 7.3.


A nucleotide-sugar oxoanion arising from deprotonation of the diphosphate OH groups of UDP-2-acetamido-4-dehydro-2,6-dideoxy-beta-D-glucose; major species at pH 7.3.


1-palmitoylglycerone 3-phosphate(2-)

An organophosphate oxoanion arising from deprotonation of the phosphate OH groups of 1-palmitoylglycerone 3-phosphate; major species at pH 7.3.


A dicarboxylic acid dianion obtained via deprotonation of both carboxy groups of 2-oxo-2H-pyran-4,6-dicarboxylic acid; major species at pH 7.3.


quercetin 3,3'-bissulfate(3-)

A flavonoid oxoanion arising from deprotonation of the sulfo and 7-hydroxy groups of quercetin 3,3'-bissulfate; major species at pH 7.3.


rifamycin B(2-)

A hydroxy monocarboxylic acid anion arising from deprotonation of the carboxy and 5-carboxy groups of rifamycin B; major species at pH 7.3.


The organophosphate oxoanion obtained by deprotonation of the diphosphate hydroxy groups of the reduced form of flavin adenine dinucleotide (FADH2).


A monocarboxylic acid anion arising from deprotonation of the carboxy and enol groups of 5-amino-4-chloro-2-(2-hydroxymuconoyl)pyridazin-3(2H)-one; major species at pH 7.3.


A nucleotide-sugar oxoanion arising from deprotonation of the carboxy and diphosphate OH groups of UDP-N-acetylmuramic acid; major species at pH 7.3.


ent-zingiberene

The enantiomer of zingiberine.


An N-acyl-L-alpha-amino acid anion that is the conjugate base of N(2)-phenylacetyl-L-glutamine; major species at pH 7.3.


An organophosphate oxoanion arising from deprotonation of the diphosphate OH groups of CDP-glycerol; major species at pH 7.3.


An organophosphate oxoanion arising from deprotonation of the phosphate OH groups of 6-phospho-beta-D-glucosyl-(1->4)-D-glucose; major species at pH 7.3.


L-rhamnulose 1-phosphate(2-)

An organophosphate oxoanion arising from deprotonation of the phosphate OH groups of L-rhamnulose 1-phosphate; major species at pH 7.3.


name: (2R)-2-hydroxy monocarboxylic acid anion

description: A hydroxy monocarboxylic acid anion where the hydroxy group is placed at position 2 (alpha to the carboxy group) and has (R)-stereochemistry; major species at pH 7.3.


L-tyrosine zwitterion

An amino acid zwitterion arising from transfer of a proton from the carboxy to the amino group of L-tyrosine; major species at pH 7.3.


An ammonium ion that is the conjugate acid of N-carbamoylputrescine, arising from protonation of the primary amino group; major species at pH 7.3.


coenzyme M(1-)

An organosulfonate oxoanion that is the conjugate base of coenzyme M; major species at pH 7.3.


Hypaphorine

An amino acid betaine obtaine by exhaustive methylation of the alpha-amino group of L-tryptophan with concomitant deprotonation of the carboxy group.


ammonioacetone

An ammonium ion that is the conjugate acid of aminoacetone, arising from protonation of the primary amino group; major species at pH 7.3.


L-allysine zwitterion

An amino acid zwitterion arising from transfer of a proton from the carboxy to the amino group of L-allysine; major species at pH 7.3.


A monocarboxylic acid anion that is the conjugate base of 3-mercapto-2-mercaptomethylpropanoic acid; major species at pH 7.3.


A precorrin carboxylic acid anion arising from global deprotonation of the seven carboxy groups and protonation of the secondary amino group of the precorrin derivative hydrogenobyrinic acid; major species at pH 7.3.


A doubly-charged ammonium ion arising from protonation of the primary and secondary amino groups of N(1)-acetylspermidine; major species at pH 7.3.


An inositol phosphate oxoanion that is the conjugate base of 1-amino-1-deoxy-scyllo-inositol 4-phosphate, arising from deprotonation of the phosphate OH groups and protonation of the amino group; major species at pH 7.3.


An alpha-amino-acid cation that is the conjugate acid of N(omega),N(omega)-dimethyl-L-arginine, arising from deprotonation of the carboxy group and protonation of the primary amino and imino groups; major species at pH 7.3.


D-allose 6-phosphate(2-)

An organophosphate oxoanion arising from deprotonation of the phosphate OH groups of D-allose 6-phosphate; major species at pH 7.3.


A flavonoid oxoanion that is the conjugate base of (+)-taxifolin, arising from selective deprotonation of the 7-hydroxy group; major species at pH 7.3.


An organophosphate oxoanion arising from deprotonation of the phosphate OH groups of 1-alpha-D-galactosyl-sn-glycerol 3-phosphate; major species at pH 7.3.


farnesyl triphosphate(3-)

An organophosphate oxoanion arising from deprotonation of three of the four free triphosphate OH groups of farnesyl triphosphate; major species at pH 7.3.


An organophosphate oxoanion arising from deprotonation of both phosphate OH groups of a CDP-diacylglycerol.


A flavonoid oxoanion that is the conjugate base of isoorientin, arising from selective deprotonation of the 7-hydroxy group; major species at pH 7.3.


cyclohexyl isocyanide(1+)

An organic cation that is the conjugate acid of cyclohexyl isocyanide, arising from protonation of the negatively charged methylidyne carbon; major species at pH 7.3.


sedoheptulose 1,7-bisphosphate(4-)

A quadruply-charged organophosphate oxoanion arising from deprotonation of the phosphate OH groups of sedoheptulose 1,7-bisphosphate; major species at pH 7.3.


alpha-D-galactose 1-phosphate(2-)

An organophosphate oxoanion arising from deprotonation of the phosphate OH groups of alpha-D-galactose 1-phosphate; major species at pH 7.3.


A doubly-charged organophosphate oxoanion arising from deprotonation of the carboxy and phosphate OH groups of the cationic species 5,10-(methanylylidene)tetrahydromethanopterin; major species at pH 7.3.


3'-phosphonato-5'-adenylyl sulfate(4-)

A quadruply-charged organophosphate oxoanion arising from deprotonation of the phosphate and sufate groups of 3'-phosphonato-5'-adenylyl sulfate; major species at pH 7.3.


O-acetyl-L-serine zwitterion

An amino acid zwitterion arising from transfer of a proton from the carboxy to the amino group of O-acetyl-L-serine; major species at pH 7.3.


A nucleotide-sugar oxoanion arising from deprotonation of the diphosphate OH groups of UDP-L-arabinose; major species at pH 7.3.


An acyl-CoA oxoanion arising from deprotonation of the phosphate and diphosphate OH groups of any acyl-CoA; major species at pH 7.3.


adenosine 3',5'-bismonophosphate(4-)

An organophosphate oxoanion arising from deprotonation of the phosphate OH groups of adenosine 3',5'-bismonophosphate; major species at pH 7.3.


An alpha-amino-acid cation arising from deprotonation of the carboxy and hydroxy groups and protonation of the amino group of the cationic 3-(3,4-dihydroxypyridinium-1-yl)-L-alanine; major species at pH 7.3.


D-ribose 1,5-bisphosphate(4-)

An organophosphate oxoanion arising from deprotonation of the phosphate OH groups of D-ribose 1,5-diphosphate; major species at pH 7.3.


A dicarboxylic acid dianion arising from deprotonation of both carboxy groups of 2-hydroxy-3-(3-oxoprop-1-enyl)but-2-enedioic acid; major species at pH 7.3.


A 2-oxo monocarboxylic acid anion arising from deprotonation of the carboxy and hydroxyphosphinyl groups of (hydroxyphosphinyl)pyruvic acid; major species at pH 7.3.


An organophosphate oxoanion arising from deprotonation of the phosphate and diphosphate OH groups of NADP(+); major species at pH 7.3.


An octuply-charged cyclic tetrapyrrole anion arising from global deprotonation of the carboxy groups of sirohydrochlorin; major species at pH 7.3.


2-hydroxypropyl phosphate(2-)

An organophosphate oxoanion arising from deprotonation of the phosphate OH groups of 2-hydroxypropyl dihydrogen phosphate; major species at pH 7.3.


quercetin-7-olate 3,4'-bissulfate(3-)

A flavonoid oxoanion arising from deprotonation of the sulfate and 7-hydroxy groups of quercetin 3,4'-bissulfate; major species at pH 7.3.


An organophosphate oxoanion arising from deprotonation of the phosphate OH groups of 4-amino-2-methyl-5-phosphooxymethylpyrimidine; major species at pH 7.3.


A nucleotide-sugar oxoanion arising from deprotonation of the diphosphate OH groups of GDP-L-galactose; major species at pH 7.3.


An alpha-amino-acid anion obtained via deprotonation of the carboxy and phoisphate groups as well as protonation of the amino and guanidino groups of N-phospho-L-lombricine; major species at pH 7.3.


An alpha-amino-acid cation arising from deprotonation of the carboxy group and protonation of both amino groups of erythro-5-hydroxy-L-lysine; major species at pH 7.3.


A dicarboxylic acid dianion arising from deprotonation of the carboxy groups of 4-carboxy-2-hydroxy-cis,cis-muconic acid 6-semialdehyde; major species at pH 7.3.


3,4,5-trimethoxydihydrocinnamic acid

A monocarboxylic acid consisting of propionic acid having a 3,4,5-trimethoxyphenyl substituent at the 3-position.


diphthinate

An amino acid zwitterion that is the conjugate base of cationic diphthine, formed via deprotonation of both carboxy groups and protonation of the primary amino group; major species at pH 7.3.


oxamate

A monocarboxylic acid anion arising from deprotonation of the carboxy group of oxamic acid.


The monoanion formed by deprotonation of the terminal carboxy group of an N(alpha)-acetylpeptide.


A guanidinium ion arising from protonation of the imino NH of 4-guanidinobutanamide; major species at pH 7.3.


deacetylcephalosporin C(1-)

A cephalosporin carboxylic acid anion that is the conjugate base of deacetylcephalosporin C, arising from deprotonation of both carboxy groups and protonation of the amino group; major species at pH 7.3.


An NDP-alpha-D-glucose(2-) arising from deprotonation of the diphosphate OH groups of UDP-D-glucose; major species at pH 7.3.


A carbohydrate acid anion that is a trianion arising from deprotonation of the carboxy and phospho groups of 8-phospho-3-deoxy-D-manno-oct-2-ulosonic acid; major species at pH 7.3.


An organophosphate oxoanion arising from deprotonation of the diphosphate OH groups of thymidine 5'-diphosphate; major species at pH 7.3.


HYPOLAETIN

A pentahydroxyflavone that consists of luteolin substituted by an additional hydroxy group at position 8.


A 2'-deoxyribonucleoside triphosphate oxoanion obtained from thymidine 5'-triphosphate by deprotonation of three of the four triphosphate OH groups.


A carbohydrate acid anion arising from deprotonation of the carboxy group of 2-dehydro-3-deoxy-L-rhamnonic acid; major species at pH 7.3.


A monocarboxylic acid anion that is the conjugate base of 5-oxo-2,5-dihydro-2-furylacetic acid, formed via deprotonation of the carboxy group; major species at pH 7.3.


A 3,4-dihydroxy-5-polyprenylbenzoate in which the polyprenyl chain contains 6 prenyl units; major species at pH 7.3.


An organic cation that is the conjugate acid of 3-aminopropanal, formed by protonation of the amino group; major species at pH 7.3.


trans-4-hydroxy-L-proline zwitterion

An L-alpha-amino acid zwitterion arising from transfer of a proton from the carboxy to the amino group of trans-4-hydroxy-L-proline; major species at pH 7.3.


A nucleotide-sugar oxoanion arising from deprotonation of the carboxy and phosphate functions of CMP-N-glycoloyl-beta-neuraminic acid; major species at pH 7.3.


L-tyrosine methyl ester 4-sulfate(1-)

A phenyl sulfate oxoanion arising from arising from deprotonation of the sulfate OH group of L-tyrosine methyl ester 4-sulfate; major species at pH 7.3.


A carbohydrate acid anion and conjugate base of 2-dehydro-3-deoxy-D-fuconic acid, formed by deprotonation of the carboxy group; major species at pH 7.3.


An organic cation that is the conjugate acid of deacetylipecoside, arising from protonation of the secondary amino group; major species at pH 7.3.


pseudouridine 5'-phosphate(2-)

An organophosphate oxoanion arising from deprotonation of the phosphate OH groups of pseudouridine 5'-phosphate; major species at pH 7.3.


An organophosphate oxoanion arising from deprotonation of the phosphate OH and carboxy groups of 3-ADP-2-phosphoglyceric acid; major species at pH 7.3.


An organic cation and conjugate acid of 5-aminopentanamide, arising from protonation of the amino group; major species at pH 7.3.


An organophosphonate oxoanion that is the conjugate base of phosphonoacetaldehyde, arising from deprotonation of one of the two phosphonate OH groups; major species at pH 7.3.


An alkane-alpha,omega-diammonium(2+) ion that is the doubly-charged ammonium ion, arising from protonation of both nitrogens of cadaverine. The major species at pH 7.3.


luteolin 7-O-beta-D-glucosiduronate

A carbohydrate acid derivative anion that is the conjugate base of luteolin 7-O-beta-D-glucosiduronic acid, arising from deprotonation of the carboxy group; major species at pH 7.3.


A 2-hydroxyoctadecanoate that has S configuration. The conjugate base of (S)-2-hydroxystearic acid obtained via deprotonation of the carboxy group; major species at pH 7.3.


A steroid acid anion that is the conjugate base of 3beta-hydroxy-4beta-methyl-5alpha-cholest-7-ene-4alpha-carboxylic acid, obtained via deprotonation of the carboxy group; major species at pH 7.3.


name: heparan sulfate alpha-D-glucosaminide polyanion

description: A carbohydrate acid derivative anion arising from deprotonation of the carboxylic acid and sulfate groups of the repeating units and protonation of the free amino group on the glucosamine of heparan sulfate alpha-D-glucosaminide; major species at pH 7.3.


trimethylammonium

An ammonium ion that is the conjugate acid of trimethylamine, obtained via protonation of the nitrogen; major species at pH 7.3.


N(6')-acetylkanamycin B(4+)

A quadruply-charged ammonium ion arising from protonation of the four free amino groups of N(6')-acetylkanamycin; major species at pH 7.3.


all-trans-nonaprenyl diphosphate(3-)

A triply-charged organophosphate oxoanion arising from deprotonation of the diphosphate OH groups of all-trans-nonaprenyl diphosphate; major species at pH 7.3.


alpha-D-glucose 1,6-bisphosphate(4-)

A quadruply-charged organophosphate oxoanion arising from deprotonation of the phosphate OH groups of alpha-D-glucose 1,6-bisphosphate; major species at pH 7.3.


An organic anion that is the conjugate base of aureusidin, arising from selective deprotonation of the hydroxy group at position 6 of the benzofuran moiety; major species at pH 7.3.


An organophosphate oxoanion arising from deprotonation of the carboxy and phosphate OH groups of 7-phospho-2-dehydro-3-deoxy-D-arabino-heptonic acid; major species at pH 7.3.


A flavonol oxoanion that is the conjugate base of myricetin, arising from selective deprotonation of the 3-hydroxy group; major species at pH 7.3.


A tricarboxylate arising from deprotonation of the three carboxylic acid groups of aerobactin; major species at pH 7.3.


Conjugate base of (2S)-2-hydroxyphytanic acid.


isopenicillin N(1-)

Conjugate base of isopenicillin N.


Conjugate base of 2-oxophytanic acid.


1D-myo-inositol 3-phosphate(2-)

The dianion of 1D-myo-inositol 3-phosphate.


Conjugate base of 5-oxo-L-proline.


METHYSERGIDE

A synthetic ergot alkaloid, structurally related to the oxytocic agent methylergonovine and to the potent hallucinogen LSD and used prophylactically to reduce the frequency and intensity of severe vascular headaches.


Conjugate base of 3,5,3'-triiodothyropyruvic acid.


The trianion of phytyl diphosphate.


An organophosphate oxoanion that is the trianion of ditrans,polycis-undecaprenyl diphosphate.


A dicarboxylic acid monoanion that is the conjugate base of 4-amino-4-deoxychorismic acid.


The 7-oxoanion of isoscoparin.


penicillin N(1-)

Conjugate base of penicillin N.


alpha-D-mannose 1-phosphate(2-)

An organophosphate oxoanion that is the dianion of alpha-D-mannose 1-phosphate.


An acyl-CoA(4-) species arising from deprotonation of the phosphate and diphosphate OH groups of 2-amino-5-oxocyclohex-1-enecarbonyl-CoA; major species at pH 7.3.


The tetraanion of CoM-S-S-CoB.


The 3-oxoanion of syringetin.


An ammonium ion that is the conjugate acid of (R)-6-hydroxynicotine, obtained by protonation of the pyrrolidine nitrogen.


1D-myo-inositol 1,3,4-trisphosphate(6-)

The hexaanion of 1D-myo-inositol 1,3,4-trisphosphate.


deacetoxycephalosporin C(1-)

Conjugate base of deacetoxycephalosporin C


chlorophyll a(1-)

A cyclic tetrapyrrole anion arising from deprotonation at the 21-position of chlorophyll a.


Conjugate base of 3-demethylubiquinone-9.


An orpanophosphate oxoanion that is the trianion of ditrans,polycis-decaprenyl diphosphate.


4-hydroxy-L-proline zwitterion

The amino acid zwitterion formed from 4-hydroxy-L-proline. It is the major microspecies present at pH 7.3.