[{"from": "human", "value": "Provide a brief overview of this molecule. [C][=C][C][=Branch2][Ring1][O][=C][C][=C][Ring1][=Branch1][C][=C][C][=Branch1][C][=O][O][C][Branch1][#Branch1][C][C][=Branch1][C][=O][O][C][=Branch1][C][=O][O][O]"}, {"from": "gpt", "value": "The molecule is a carboxylic ester obtained by formal condensation of the carboxy group of 4-coumaric acid with the hydroxy group of malic acid. It has a role as a human urinary metabolite. It is a dicarboxylic acid, a carboxylic ester and a member of phenols. It is functionally related to a 4-coumaric acid and a malic acid."}]