The molecule is the conjugate base of L-gamma-glutamyl-L-cysteinyl-beta-alanine having an anionic carboxy terminus and a zwitterionic gamma-glutamyl residue; major species at pH 7.3. It is a conjugate base of a L-gamma-glutamyl-L-cysteinyl-beta-alanine.
(2S)-2-azaniumyl-5-[[(2R)-1-(2-carboxylatoethylamino)-1-oxo-3-sulfanylpropan-2-yl]amino]-5-oxopentanoate