The molecule is a polyunsaturated fatty acid anion that is the conjugate base of 13S-HOTrE arising from deprotonation of the carboxylic acid function; major species at pH 7.3. It is a long-chain fatty acid anion and a hydroxy polyunsaturated fatty acid anion. It is a conjugate base of a 13(S)-HOTrE.
(9Z,11E,13S,15Z)-13-hydroxyoctadeca-9,11,15-trienoate