[{"from": "human", "value": "Please give me some details about this molecule. [C][Branch1][=Branch2][/C][=C][/C][C][=Branch1][C][=O][O][C][=Branch1][C][=O][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is an oxo dicarboxylic acid that is 2-oxohept-4-ene in which the two terminal methyl groups are replaced by carboxy groups. It is an oxo dicarboxylic acid, an olefinic compound and a dicarboxylic fatty acid. It is a conjugate acid of a 2-oxohept-4-ene-1,7-dioate. It is a tautomer of a 2-hydroxyhepta-2,4-dienedioic acid."}]