The molecule is a branched amino pentasaccharide consisting of the linear trisaccharide alpha-D-galactosyl-(1->3)-beta-D-galactosyl-(1->3)-N-acetyl-beta-D-glucosamine having alpha-L-fucosyl residues attached at position 2 of the galactose and position 4 of the glucosamine. It is an amino pentasaccharide and a glucosamine oligosaccharide.
N-[(2R,3R,4R,5S,6R)-2-hydroxy-4-[(2R,3R,4S,5S,6R)-5-hydroxy-6-(hydroxymethyl)-4-[(2R,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-3-[(2S,3S,4R,5S,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxyoxan-2-yl]oxy-6-(hydroxymethyl)-5-[(2S,3S,4R,5S,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxyoxan-3-yl]acetamide