The molecule is a tetrasaccharide consisting of beta-L-rhamnose having a alpha-L-rhamnosyl-(1->2)-[beta-D-glucosyl-(1->4)]-beta-D-galactosyl moiety attached at the 4-position with an additional 2-glycerylphosphate group attached to the galactosyl residue. It is an oligosaccharide phosphate and a tetrasaccharide derivative.
1,3-dihydroxypropan-2-yl [(2R,3S,4S,5R,6S)-2-(hydroxymethyl)-3-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-5-[(2S,3R,4R,5R,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxy-6-[(2S,3R,4S,5R,6S)-4,5,6-trihydroxy-2-methyloxan-3-yl]oxyoxan-4-yl] hydrogen phosphate