[{"from": "human", "value": "What can you tell me about this molecule? [C][Branch1][#Branch1][C][C][=Branch1][C][=O][O-1][C][Branch1][O][/C][=C][Branch1][=Branch1][/C][=Branch1][C][=O][O][\\O-1][O]"}, {"from": "gpt", "value": "The molecule is dicarboxylate anion of 2,4-dihydroxyhept-2-enedioic acid. It is a conjugate base of a 2,4-dihydroxyhept-2-enedioic acid. It is a tautomer of a 4-hydroxy-2-oxoheptanedioate."}]