The molecule is a 13-hydroxy-14,15-epoxy-(5Z,8Z,11Z)-icosatrienoate that is the conjugate base of 13(S)-hydroxy-(14S,15S)-epoxy-(5Z,8Z,11Z)-icosatrienoic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of a (13S)-hydroxy-(14S,15S)-epoxy-(5Z,8Z,11Z)-icosatrienoic acid.
(5Z,8Z,11Z,13S)-13-hydroxy-13-[(2S,3S)-3-pentyloxiran-2-yl]trideca-5,8,11-trienoate