[{"from": "human", "value": "Describe this molecule. [C][C][/C][=C][\\C][/C][=C][\\C][C@@H1][Branch1][S][/C][=C][/C][=C][\\C][/C][=C][\\C][C][C][C][=Branch1][C][=O][O][O][O]"}, {"from": "gpt", "value": "The molecule is a 12-HPEPE in which the hydroperoxy group at positions 12 has S-configuration. It has a role as a human xenobiotic metabolite. It is a conjugate acid of a 12(S)-HpEPE(1-)."}]