The molecule is a branched amino heptasaccharide consisting of a D-GlcNAc residue at the reducing end with a beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->6)-[alpha-D-Man-(1->3)]-[beta-D-Xyl-(1->2)]-beta-D-Man-(1->4)-beta-D-GlcNAc moiety attached via a beta-(1->4)-linkage. It is an amino heptasaccharide and a glucosamine oligosaccharide.
N-[(3R,4R,5S,6R)-5-[(2S,3R,4R,5S,6R)-3-acetamido-5-[(2S,3S,4S,5R,6R)-6-[[(2S,3S,4S,5S,6R)-3-[(2S,3R,4R,5S,6R)-3-acetamido-4,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-4,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxymethyl]-5-hydroxy-4-[(2R,3S,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-3-[(2S,3R,4S,5R)-3,4,5-trihydroxyoxan-2-yl]oxyoxan-2-yl]oxy-4-hydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-2,4-dihydroxy-6-(hydroxymethyl)oxan-3-yl]acetamide