The molecule is an organic disulfide and a glutathione derivative. It has a role as an Escherichia coli metabolite and a mouse metabolite. It is a conjugate acid of a glutathione disulfide(2-).
(2S)-2-amino-5-[[(2R)-3-[[(2R)-2-[[(4S)-4-amino-4-carboxybutanoyl]amino]-3-(carboxymethylamino)-3-oxopropyl]disulfanyl]-1-(carboxymethylamino)-1-oxopropan-2-yl]amino]-5-oxopentanoic acid