The molecule is a doubly-charged peptide anion arising from deprotonation of the four carboxy groups and protonation of the two amino groups of glutathione disulfide; major species at pH 7.3. It has a role as a human metabolite and a Saccharomyces cerevisiae metabolite. It is a conjugate base of a glutathione disulfide.
(2S)-2-azaniumyl-5-[[(2R)-3-[[(2R)-2-[[(4S)-4-azaniumyl-4-carboxylatobutanoyl]amino]-3-(carboxylatomethylamino)-3-oxopropyl]disulfanyl]-1-(carboxylatomethylamino)-1-oxopropan-2-yl]amino]-5-oxopentanoate