[{"from": "human", "value": "Could you provide a description of this molecule? [C][=C][C][Branch1][=Branch1][O][C][Ring1][Branch1][=O][Branch1][#Branch1][C][C][=Branch1][C][=O][O-1][C][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is dicarboxylate anion of 2-(carboxymethyl)-5-oxo-2,5-dihydro-2-furoic acid. It is a conjugate base of a 2-(carboxymethyl)-5-oxo-2,5-dihydro-2-furoic acid."}]