The molecule is an amino disaccharide consisting of a 3-deoxy-4-O-phosphono-D-manno-oct-2-ulose residue attached to beta-glucosamine via an alpha-(2->6)-linkage with an O-allyl group at the anomeric centre. It is an amino disaccharide and a glucosamine oligosaccharide.
(2R,4R,5S,6R)-2-[[(2R,3S,4R,5R,6R)-5-acetamido-3,4-dihydroxy-6-prop-2-enoxyoxan-2-yl]methoxy]-6-[(1R)-1,2-dihydroxyethyl]-5-hydroxy-4-phosphonooxyoxane-2-carboxylic acid