[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][C][C][C][C@H1][/C][=Branch1][S][=C][/C][=C][/C][C][C][C][C][C][C][C][=Branch1][C][=O][O][/O][Ring1][S]"}, {"from": "gpt", "value": "The molecule is a C18, polyunsaturated, epoxy fatty acid having double bonds at positions 9 and 11, and a (13S)-12,13-epoxy group. It is a polyunsaturated fatty acid, an epoxy fatty acid and a long-chain fatty acid. It is functionally related to an octadeca-9,11-dienoic acid."}]