The molecule is the L-alpha-amino acid anion that is a conjugate base of L-cystine, formed by loss of a proton from each of the carboxy groups. It is the major microspecies at pH > 9.4. It has a role as a human metabolite. It is a conjugate base of a L-cystine.
(2R)-2-amino-3-[[(2R)-2-amino-2-carboxylatoethyl]disulfanyl]propanoate