[{"from": "human", "value": "What can you tell me about this molecule? [C][O][C][=C][C][=Branch1][O][=C][C][=Branch1][Branch1][=C][Ring1][=Branch1][O][O][C][/C][=C][/C][=Branch1][C][=O][O][C][Branch1][=Branch1][C][=Branch1][C][=O][O][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is the ester obtained from formal condensation of sinapic acid and hydroxymalonic acid. It is a dicarboxylic acid and a carboxylic ester. It is functionally related to a trans-sinapic acid. It is a conjugate acid of a sinapoyltartronate(2-)."}]