[{"from": "human", "value": "Provide a description of this molecule. [C][C][=Branch1][C][=O][C][=Branch1][C][=O][O][C]"}, {"from": "gpt", "value": "The molecule is a pyruvate ester resultinf grom the formal condensation of the carboxy group of pyruvic acid with the hydroxy group of methanol. It is a pyruvate ester and a methyl ester. It is functionally related to a pyruvic acid."}]