preferred_name: 2-methyl-3-sulfanylbutan-1-ol + 2-aminoprop-2-enoate => S-(4-hydroxy-3-methylbutan-2-yl)-L-cysteine
preferred_name_lc: 2-methyl-3-sulfanylbutan-1-ol + 2-aminoprop-2-enoate => s-(4-hydroxy-3-methylbutan-2-yl)-l-cysteine
label: 2-methyl-3-sulfanylbutan-1-ol + 2-aminoprop-2-enoate => S-(4-hydroxy-3-methylbutan-2-yl)-L-cysteine
label_lc: 2-methyl-3-sulfanylbutan-1-ol + 2-aminoprop-2-enoate => s-(4-hydroxy-3-methylbutan-2-yl)-l-cysteine