The molecule is an amino trisaccharide consisting of an N-acetyl-D-glucosamine flanked by two D-galactose residues in a linear sequence with (1->4) and (1->4) linkages. It is an amino trisaccharide and a glucosamine oligosaccharide.
N-[(2R,3R,4R,5S,6R)-4-hydroxy-6-(hydroxymethyl)-2-[[(2R,3R,4S,5R)-3,4,5,6-tetrahydroxyoxan-2-yl]methoxy]-5-[(2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-3-yl]acetamide