[{"from": "human", "value": "Could you provide a description of this molecule? [C][=Branch1][C][=O][Branch1][=Branch1][C][=Branch1][C][=O][O][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is an oxo dicarboxylic acid. It is functionally related to a malonic acid. It is a conjugate acid of an oxomalonate(1-)."}]