The molecule is a hydroxy fatty acid ascaroside anion that is the conjugate base of oscr#30, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of an oscr#30.
17-[(2R,3R,5R,6S)-3,5-dihydroxy-6-methyloxan-2-yl]oxyheptadecanoate