[{"from": "human", "value": "Could you provide a description of this molecule? [C][Branch2][Ring2][N][C][C][=Branch1][C][=O][N][C][Branch2][Ring1][=N][C][S][S][C][C][Branch1][=Branch1][C][=Branch1][C][=O][O-1][N][C][=Branch1][C][=O][C][C][C][Branch1][=Branch1][C][=Branch1][C][=O][O-1][NH3+1][C][=Branch1][C][=O][O-1][C][Branch1][=Branch1][C][=Branch1][C][=O][O-1][NH3+1]"}, {"from": "gpt", "value": "The molecule is dianion of bis-gamma-glutamylcystine arising from deprotonation of all four carboxy groups and protonation of both amino groups; major species at pH 7.3. It is a conjugate base of a bis-gamma-glutamylcystine."}]