The molecule is a sophoroside resulting from the formal condensation of the alcoholic hydroxy group of 17-hydroxyoleic acid with beta-sophorose. It is an (omega-1)-hydroxy fatty acid, a sophoroside and a sophorolipid. It derives from a (9Z)-17-hydroxyoctadec-9-enoic acid. It is a conjugate acid of a (9Z)-17-hydroxyoctadec-9-enoate 17-O-sophoroside.
(Z)-17-[(2R,3R,4S,5S,6R)-4,5-dihydroxy-6-(hydroxymethyl)-3-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-2-yl]oxyoctadec-9-enoic acid