[{"from": "human", "value": "What can you tell me about this molecule? [C][C][Branch1][C][C][C@H1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][O]"}, {"from": "gpt", "value": "The molecule is a hydroxy monocarboxylic acid anion resulting from the deprotonation of the carboxy group of (R)-2-hydroxy-3-methylbutyric acid. The major species at pH 7.3. It is a conjugate base of a (R)-2-hydroxy-3-methylbutyric acid. It is an enantiomer of a (S)-2-hydroxy-3-methylbutyrate."}]