[{"from": "human", "value": "Could you provide a description of this molecule? [C][C][Branch1][=Branch1][C][=Branch1][C][=O][O][C][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is a dicarboxylic acid monoanion resulting from the removal of a proton from one of the carboxylic acid groups of methylmalonic acid. It has a role as a human metabolite. It is a conjugate base of a methylmalonic acid. It is a conjugate acid of a methylmalonate(2-)."}]