The molecule is a branched amino nonasaccharide comprised of a sequence of N-acetyl-alpha-D-glucosamine, beta-D-galactose, N-acetyl-beta-D-glucosamine, beta-D-galactose, N-acetyl-beta-D-glucosamine, beta-D-galactose and N-acetyl-beta-D-glucosamine residues linked (1->4), (1->4), (1->3), (1->4), (1->3) and (1->4), with alpha-L-fucosyl residues linked (1->3) both to the N-acetyl-alpha-D-glucosamine residue at the reducing end and the one proximal to it in the sequence. It has a role as an epitope. It is an amino nonasaccharide and a glucosamine oligosaccharide.
N-[(2R,3R,4R,5S,6R)-2-[(2R,3R,4R,5R,6S)-6-[(2R,3S,4R,5R,6S)-5-acetamido-6-[(2S,3R,4S,5S,6R)-2-[(2R,3S,4R,5R,6S)-5-acetamido-6-[(2S,3R,4S,5S,6R)-2-[(2R,3S,4R,5R,6R)-5-acetamido-6-hydroxy-2-(hydroxymethyl)-4-[(2S,3S,4R,5S,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxyoxan-3-yl]oxy-3,5-dihydroxy-6-(hydroxymethyl)oxan-4-yl]oxy-2-(hydroxymethyl)-4-[(2S,3S,4R,5S,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxyoxan-3-yl]oxy-3,5-dihydroxy-6-(hydroxymethyl)oxan-4-yl]oxy-4-hydroxy-2-(hydroxymethyl)oxan-3-yl]oxy-4,5-dihydroxy-2-(hydroxymethyl)oxan-3-yl]oxy-4,5-dihydroxy-6-(hydroxymethyl)oxan-3-yl]acetamide