[{"from": "human", "value": "Describe this molecule. [C][C][=C][Branch2][Ring2][=Branch2][C][=Branch1][C][=O][C][=C][Branch2][Ring1][=Branch2][C@][Branch2][Ring1][Ring2][C@@H1][C@@H1][Branch1][Branch1][N][Ring1][Ring1][C][C][N][Ring1][#Branch1][C][Ring1][#Branch2][=C][Ring1][#C][O-1][O][C][O][C][=Branch1][C][=O][N][O-1]"}, {"from": "gpt", "value": "The molecule is a phenolate anion obtained by removal of two protons from position C-8 and O-6 of 7-demethylmitomycin B. It is the major microspecies at pH 7.3 (according to Marvin v 6.2.0.). It is a conjugate base of a 7-demethylmitomycin B(1-)."}]