[{"from": "human", "value": "Generate a molecule based on this description. The molecule is a hydroxy fatty acid anion that is the conjugate base of 2-hydroxyisobutyric acid, arising from deprotonation of the carboxy group; major species at pH 7.3. It has a role as a human xenobiotic metabolite. It is functionally related to an isobutyrate. It is a conjugate base of a 2-hydroxyisobutyric acid."}, {"from": "gpt", "value": "[C][C][Branch1][C][C][Branch1][=Branch1][C][=Branch1][C][=O][O-1][O]"}]