The molecule is dianion of S-succinylglutathione having anionic carboxy groups and a protonated primary amino group. It is a conjugate base of a S-succinylglutathione.
(2S)-2-azaniumyl-5-[[(2R)-1-(carboxylatomethylamino)-3-(3-carboxylatopropanoylsulfanyl)-1-oxopropan-2-yl]amino]-5-oxopentanoate