The molecule is a peptide anion obtained by removal of protons from the three carboxy groups as well as protonation of the amino group of gamma-Glu-Glu; major species at pH 7.3. It has a role as a human metabolite. It is a conjugate base of a gamma-Glu-Glu.
(2S)-2-[[(4S)-4-azaniumyl-4-carboxylatobutanoyl]amino]pentanedioate