[{"from": "human", "value": "Provide a brief overview of this molecule. [C][Branch1][N][C][=Branch1][C][=O][/C][=C][\\C][=Branch1][C][=O][O-1][C][=Branch1][C][=O][C][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is a 4,6-dioxohept-2-enedioate. It is a conjugate base of a 3-maleylpyruvic acid."}]