[{"from": "human", "value": "What can you tell me about this molecule? [C][Branch1][Branch2][/C][=C][/C][=Branch1][C][=O][O][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is a pentenedioic acid that is pent-2-ene substituted by carboxy groups at positions 1 and 5. It has a role as a human metabolite. It is a conjugate acid of a glutaconate(1-)."}]