[{"from": "human", "value": "What can you tell me about this molecule? [C][C][Branch1][=Branch1][C][Branch1][C][C][O][C][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is a hydroxy fatty acid anion that is the conjugate base of 2-methyl-3-hydroxybutyric acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is functionally related to a butyrate. It is a conjugate base of a 3-hydroxy-2-methylbutanoic acid."}]