[{"from": "human", "value": "Provide a description of this molecule. [C][C][Branch1][Branch2][C][C][C][=Branch1][C][=O][O-1][C][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is a dicarboxylic acid dianion obtained by deprotonation of the carboxy groups of 2-methylglutaric acid. It has a role as a mammalian metabolite. It is a conjugate base of a 2-methylglutaric acid."}]