[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C@H1][Branch1][Ring1][C][O][C][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is the anion formed by loss of a proton from the carboxy group of (R)-3-hydroxyisobutyric acid; major microspecies at pH 7.3. It is a conjugate base of a (2R)-3-HYDROXY-2-METHYLPROPANOIC ACID. It is an enantiomer of a (S)-3-hydroxyisobutyrate."}]