[{"from": "human", "value": "Provide a description of this molecule. [C][Branch1][#C][/C][=Branch1][#Branch1][=C][\\C][=Branch1][C][=O][O][/C][=Branch1][C][=O][O][C][=Branch1][C][=O][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is a 4-oxo derivative of but-1-ene-1,2,4-tricarboxylic acid with (E)-stereochemistry about the C=C bond. It is functionally related to a but-1-ene-1,2,4-tricarboxylic acid. It is a conjugate acid of a (1E)-4-oxobut-1-ene-1,2,4-tricarboxylate."}]