[{"from": "human", "value": "Describe this molecule. [C][C][C][C][C][C][C][C][C@H1][C@H1][Branch1][Ring2][O][Ring1][Ring1][C][C][C][C][C][C][C][C][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is a 9,10-epoxyoctadecanoate that is the conjugate base of (9R,10S)-9,10-epoxyoctadecanoic acid arising from deprotonation of the carboxylic acid function; major species at pH 7.3. It is a conjugate base of a (9R,10S)-9,10-epoxyoctadecanoic acid. It is an enantiomer of a (9S,10R)-epoxyoctadecanoate."}]