preferred_name: S-disulfanyl-L-cysteine + L-alanine => S-sulfanyl-L-cysteine + L-cysteine
preferred_name_lc: s-disulfanyl-l-cysteine + l-alanine => s-sulfanyl-l-cysteine + l-cysteine
label: S-disulfanyl-L-cysteine + L-alanine => S-sulfanyl-L-cysteine + L-cysteine
label_lc: s-disulfanyl-l-cysteine + l-alanine => s-sulfanyl-l-cysteine + l-cysteine