[{"from": "human", "value": "Provide a brief overview of this molecule. [C][Branch1][#Branch2][C][=Branch1][C][=O][C][=Branch1][C][=O][O-1][C][Branch1][#Branch1][C][C][=Branch1][C][=O][O-1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][O]"}, {"from": "gpt", "value": "The molecule is the tricarboxylate anion of 2-hydroxy-4-oxobutane-1,2,4-tricarboxylic acid; major species at pH 7.3. It is a conjugate base of a 2-hydroxy-4-oxobutane-1,2,4-tricarboxylic acid."}]