[{"from": "human", "value": "Could you provide a description of this molecule? [C][=C][C][=Branch2][Ring1][Ring1][=C][Branch1][#C][C][=C][Ring1][=Branch1][C][C][=Branch1][C][=O][C][=Branch1][C][=O][O][O][O]"}, {"from": "gpt", "value": "The molecule is a 2-oxo monocarboxylic acid that is pyruvic acid in which one of the methyl hydrogens is substituted by a 3,4-dihydroxyphenyl group. It has a role as a metabolite. It is functionally related to a pyruvic acid. It is a conjugate acid of a 3,4-dihydroxyphenylpyruvate."}]