The molecule is a hydroxy fatty acid anion obtained by the deprotonation of the carboxy group of lipoxin B4: major species at pH 7.3. It is a hydroxy fatty acid anion and a lipoxin anion. It is a conjugate base of a lipoxin B4.
(5S,6E,8Z,10E,12E,14R,15S)-5,14,15-trihydroxyicosa-6,8,10,12-tetraenoate