The molecule is a branched amino hexasaccharide consisting of the trisaccharide beta-D-galactosyl-(1->4)-N-acetyl-beta-D-glucosaminyl-(1->3)-beta-D-galactose where the galactosyl residue at the non-reducing end has alpha-L-fucosyl and N-acetyl-alpha-D-galactosaminylresidues attached at the 2- and 3-positions respectively and the glucosaminyl residue has an alpha-L-fucosyl attached at the 3-position. It is an amino hexasaccharide, a galactosamine oligosaccharide and a glucosamine oligosaccharide.
N-[(2R,3R,4R,5R,6R)-2-[(2S,3R,4S,5S,6R)-2-[(2R,3S,4R,5R,6S)-5-acetamido-2-(hydroxymethyl)-6-[(2R,3R,4S,5S,6R)-2,3,5-trihydroxy-6-(hydroxymethyl)oxan-4-yl]oxy-4-[(2S,3S,4R,5S,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxyoxan-3-yl]oxy-5-hydroxy-6-(hydroxymethyl)-3-[(2S,3S,4R,5S,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxyoxan-4-yl]oxy-4,5-dihydroxy-6-(hydroxymethyl)oxan-3-yl]acetamide