[{"from": "human", "value": "Please give me some details about this molecule. [C][C][Branch1][Ring1][C][=C][Branch1][=Branch1][C][=Branch1][C][=O][O-1][S][C][C@@H1][Branch1][N][C][=Branch1][C][=O][N][C][C][=Branch1][C][=O][O-1][N][C][=Branch1][C][=O][C][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][NH3+1]"}, {"from": "gpt", "value": "The molecule is a peptide anion obtained by deprotonation of the the three carboxy groups and protonation of the amino group of S-(2-carboxy-2-methylbut-3-en-2-yl)-glutathione; major species at pH 7.3. It is a conjugate base of a S-(2-carboxy-2-methylbut-3-en-2-yl)glutathione."}]