[{"from": "human", "value": "Please give me some details about this molecule. [C][=C][Branch1][=Branch1][C][=Branch1][C][=O][O-1][O][C@H1][C][=C][C][=C][Branch1][Branch1][C@@H1][Ring1][=Branch1][O][C][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is a dicarboxylic acid dianion. It is a conjugate base of an isochorismic acid."}]