The molecule is an amino tetrasaccharide comprised of a linear sequence of beta-D-galactose, N-acetyl-beta-D-glucosamine, beta-D-galactose and N-acetyl-beta-D-glucosamine residues linked (1->4), (1->6), (1->4) and (1->6). It has a role as an epitope. It is an amino tetrasaccharide and a glucosamine oligosaccharide.
N-[(2R,3R,4R,5S,6R)-5-[(2S,3R,4S,5R,6R)-6-[[(2R,3R,4R,5S,6R)-3-acetamido-4-hydroxy-6-(hydroxymethyl)-5-[(2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-2-yl]oxymethyl]-3,4,5-trihydroxyoxan-2-yl]oxy-2,4-dihydroxy-6-(hydroxymethyl)oxan-3-yl]acetamide