[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][C][Branch1][=Branch1][C][=Branch1][C][=O][O-1][C][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is a dicarboxylic acid dianion resulting from the removal of a proton from both of the carboxylic acid groups of ethylmalonic acid. It is a dicarboxylic acid dianion and an ethylmalonate. It is a conjugate base of an ethylmalonic acid."}]