The molecule is a lipooligosaccharide consisting of a phenolic phthiocerol core linked to the trisaccharide 3,6-di-O-methyl-alpha-D-glucopyranosyl-(1->4)-2,3-di-O-methyl-alpha-L-rhamnopyranosyl-(1->2)-3-O-methyl-alpha-L-rhamnopyranose. It has a role as an epitope. It derives from a phenolic phthiocerol.
(2R,3R,4S,5R,6R)-2-[(2S,3S,4R,5R,6S)-6-[(2S,3R,4R,5S,6S)-2-[4-[(19S,21R,26R,27S)-19,21-dihydroxy-27-methoxy-26-methylnonacosyl]phenoxy]-5-hydroxy-4-methoxy-6-methyloxan-3-yl]oxy-4,5-dimethoxy-2-methyloxan-3-yl]oxy-4-methoxy-6-(methoxymethyl)oxane-3,5-diol