[{"from": "human", "value": "What can you tell me about this molecule? [C][C][=Branch1][C][=O][C@@][Branch1][C][C][Branch1][=Branch1][C][=Branch1][C][=O][O-1][O]"}, {"from": "gpt", "value": "The molecule is conjugate base of (2S)-2-hydroxy-2-methyl-3-oxobutanoic acid. It is a conjugate base of a (2S)-2-hydroxy-2-methyl-3-oxobutanoic acid."}]