The molecule is an amino trisaccharide in which two galactose residues, linked alpha(1->4), are linked beta(1->3) to an N-acetylgalactosamine residue. It is an amino trisaccharide and a galactosamine oligosaccharide.
N-[(2S,3R,4R,5R,6R)-4-[(2R,3R,4R,5R,6R)-3,4-dihydroxy-6-(hydroxymethyl)-5-[(2R,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-2-yl]oxy-2,5-dihydroxy-6-(hydroxymethyl)oxan-3-yl]acetamide