The molecule is a monocarboxylic acid anion resulting from the deprotonation of the carboxy group of 5(S),8(R)-DiHODE. The major species at pH 7.3. It is a monocarboxylic acid anion and an octadecanoid anion. It is a conjugate base of a 5(S),8(R)-DiHODE.
(5S,8R,9Z,12Z)-5,8-dihydroxyoctadeca-9,12-dienoate