[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][Branch1][Ring1][C][O][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is a 4-carbon, branched hydroxy fatty acid and intermediate in the metabolism of valine. It is functionally related to a propionic acid. It is a conjugate acid of a 3-hydroxyisobutyrate."}]