The molecule is an amino oligosaccharide that is a branched tridecasaccharide in which two alpha-D-GalNAc-(1->3)-[alpha-L-Fuc-(1->2)]-beta-D-Gal-(1->4)-beta-D-GlcNAc-(1->2)-alpha-D-Man pentasaccharide units are linked (1->3) and (1->6) to the mannoose residue of a beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc trisaccharide chain. It has a role as an epitope. It is a galactosamine oligosaccharide, a glucosamine oligosaccharide and an amino oligosaccharide.
N-[(2R,3R,4R,5S,6R)-5-[(2S,3R,4R,5S,6R)-3-acetamido-5-[(2S,3S,4S,5R,6R)-4-[(2S,3S,4S,5S,6R)-3-[(2S,3R,4R,5S,6R)-3-acetamido-5-[(2S,3R,4S,5S,6R)-4-[(2R,3R,4R,5R,6R)-3-acetamido-4,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-5-hydroxy-6-(hydroxymethyl)-3-[(2S,3S,4R,5S,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxyoxan-2-yl]oxy-4-hydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-4,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-6-[[(2S,3S,4S,5S,6R)-3-[(2S,3R,4R,5S,6R)-3-acetamido-5-[(2S,3R,4S,5S,6R)-4-[(2R,3R,4R,5R,6R)-3-acetamido-4,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-5-hydroxy-6-(hydroxymethyl)-3-[(2S,3S,4R,5S,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxyoxan-2-yl]oxy-4-hydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-4,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxymethyl]-3,5-dihydroxyoxan-2-yl]oxy-4-hydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-2,4-dihydroxy-6-(hydroxymethyl)oxan-3-yl]acetamide