The molecule is an L-tyrosine derivative that is L-DOPA in which the hydrogens at positions 2 and 5 on the phenyl ring are replaced by cysteinyl groups. Found in the urine of patients with melanoma. It has a role as a human urinary metabolite. It is a S-conjugate, a S-organyl-L-cysteine, a L-tyrosine derivative, a tricarboxylic acid, a triamine, an aryl sulfide and a member of catechols. It derives from a L-dopa.
(2S)-2-amino-3-[2,5-bis[[(2R)-2-amino-2-carboxyethyl]sulfanyl]-3,4-dihydroxyphenyl]propanoic acid