The molecule is a 13-HETE anion that is the conjugate base of 13(S)-HETE, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of a 13(S)-HETE.
(5Z,8Z,11Z,13S,14Z)-13-hydroxyicosa-5,8,11,14-tetraenoate