[{"from": "human", "value": "Provide a brief overview of this molecule. [C][Branch1][#Branch2][C][=Branch1][C][=O][C][=Branch1][C][=O][O-1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][O]"}, {"from": "gpt", "value": "The molecule is an oxo dicarboxylic acid dianion arising from deprotonation of both carboxy groups of 2-hydroxy-3-oxosuccinic acid; major species at pH 7.3. It is a C4-dicarboxylate and an oxo dicarboxylic acid dianion. It is a conjugate base of a 2-hydroxy-3-oxosuccinic acid."}]