[{"from": "human", "value": "Describe this molecule. [C][C][C][C][C][C][C][Branch1][S][C][/C][=C][/C][C][C][C][C][C][C][C][=Branch1][C][=O][O][O]"}, {"from": "gpt", "value": "The molecule is a hydroxy fatty acid that is (9E)-octadec-9-enoic (elaidic) acid carrying a hydroxy substituent at position 12. It is a hydroxy fatty acid, a long-chain fatty acid and a hydroxy monounsaturated fatty acid. It is functionally related to an elaidic acid. It is a conjugate acid of a (9E)-12-hydroxyoctadec-9-enoate."}]