The molecule is an amino tetrasaccharide consisting of alpha-D-galactose, beta-D-galactose, N-acetyl-beta-D-glucosamine and N-acetyl-beta-D-galactosamine residues connected in sequence by (1->3) linkages. It is an amino tetrasaccharide, a glucosamine oligosaccharide and a galactosamine oligosaccharide.
N-[(3R,4R,5R,6R)-4-[(2R,3R,4R,5S,6R)-3-acetamido-4-[(2R,3R,4S,5S,6R)-3,5-dihydroxy-6-(hydroxymethyl)-4-[(2R,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-2-yl]oxy-5-hydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-2,5-dihydroxy-6-(hydroxymethyl)oxan-3-yl]acetamide