The molecule is a hydroxy fatty acid ascaroside anion that is the conjugate base of bkos#9, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a hydroxy fatty acid ascaroside anion and a 3-oxo monocarboxylic acid anion. It is a conjugate base of a bkos#9.
5-[(2R,3R,5R,6S)-3,5-dihydroxy-6-methyloxan-2-yl]oxy-3-oxopentanoate