[{"from": "human", "value": "Please give me some details about this molecule. [C][Branch1][=Branch1][C][C][C][C][O][C][C][C][C@H1][C@H1][Branch1][Ring2][O][Ring1][Ring1][C][C][C][C][C][C][C][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is a 9,10-epoxy-18-hydroxyoctadecanoic acid in which the chiral centres at positions 9 and 10 have R- and S-configuration respectively. It is a conjugate acid of a (9R,10S)-9,10-epoxy-18-hydroxyoctadecanoate. It is an enantiomer of a (9S,10R)-9,10-epoxy-18-hydroxyoctadecanoic acid."}]