The molecule is a branched amino pentasaccharide having beta-D-galactose at the reducing end with a beta-D-galactosyl-(1->4)-[beta-D-galactosyl-(1->4)-beta-D-glucosyl-(1->6)]-N-acetyl-beta-D-glucosaminyl moiety at the 3-position. It is an amino pentasaccharide and a glucosamine oligosaccharide.
N-[(2S,3R,4R,5S,6R)-6-[[(2R,3R,4R,5S,6R)-3,4-dihydroxy-6-(hydroxymethyl)-5-[(2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-2-yl]oxymethyl]-4-hydroxy-2-[(2R,3R,4S,5S,6R)-2,3,5-trihydroxy-6-(hydroxymethyl)oxan-4-yl]oxy-5-[(2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-3-yl]acetamide