The molecule is a branched amino hexasaccharide comprising a linear chain of beta-D-galactose, N-acetyl-beta-D-glucosamine, beta-D-galactose and N-acetyl-beta-D-glucosamine, linked (1->3), (1->3) and (1->4) respectively, with an alpha-L-fucose residue linked to each N-acetyl-beta-D-glucosamine residue, (1->3)-linked to the reducing-end GlcNAc and (1->4)linked to the GlcNAc at the non-reducing end. It has a role as an epitope. It is an amino hexasaccharide and a glucosamine oligosaccharide.
N-[(2R,3R,4R,5S,6R)-5-[(2S,3R,4S,5S,6R)-4-[(2S,3R,4R,5S,6R)-3-acetamido-6-(hydroxymethyl)-4-[(2R,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-5-[(2S,3S,4R,5S,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxyoxan-2-yl]oxy-3,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-2-hydroxy-6-(hydroxymethyl)-4-[(2S,3S,4R,5S,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxyoxan-3-yl]acetamide