[{"from": "human", "value": "Provide a description of this molecule. [C][Branch1][=N][/C][=C][\\C][=C][Branch1][=Branch1][\\C][=Branch1][C][=O][O][/O][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is a dicarboxylic acid that is 2-hydroxyhepta-2,4-diene in which the two terminal methyl groups are replaced by carboxy groups (the 2Z,4Z-geoisomer). It is an enol, a polyunsaturated dicarboxylic acid and a dicarboxylic fatty acid. It is a conjugate acid of a (2Z,4Z)-2-hydroxyhepta-2,4-dienedioate. It is a tautomer of a (4Z)-2-oxohept-4-enedioic acid."}]