[{"from": "human", "value": "What can you tell me about this molecule? [C][C][Branch1][C][C][Branch1][#Branch1][C][C][=Branch1][C][=O][O-1][C][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is a dicarboxylic acid dianion resulting from the deprotonation of the two carboxy groups of 2,2-dimethylsuccinic acid; major species at pH 7.3. It is a conjugate base of a 2,2-dimethylsuccinic acid."}]