[{"from": "human", "value": "Please give me some details about this molecule. [C][=C][C][=Branch2][=Branch1][Ring2][=C][C][=C][Ring1][=Branch1][C][C][N][C][=Branch1][C][=O][C][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][N][C][=Branch1][C][=O][C][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][N][C][=Branch1][C][=O][C][C][C@@H1][Branch1][S][C@@H1][Branch1][Branch2][C][C][C][=Branch1][C][=O][O-1][C][=Branch1][C][=O][O-1][C][=Branch1][C][=O][O-1][O][C][C][=C][O][C][=Branch1][Ring2][=C][Ring1][Branch1][C][NH3+1]"}, {"from": "gpt", "value": "The molecule is tetraanion of methanofuran arising from deprotonation of all five carboxy groups and protonation of the amino group; major species at pH 7.3. It is a conjugate base of a methanofuran."}]