[{"from": "human", "value": "Describe 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-1][O][O]"}, {"from": "gpt", "value": "The molecule is a 2-oxo monocarboxylic acid anion that results from the removal of a proton from the carboxylic acid group of 3,4-dihydroxyphenylpyruvic acid. It is functionally related to a pyruvate. It is a conjugate base of a 3,4-dihydroxyphenylpyruvic acid."}]