The molecule is a linear amino trisaccharide consisting of a beta-D-galactosyl residue linked (1->3) to an N-acetyl-D-glucosaminyl residue, which is in turn linked (1->3) to N-acetyl-D-glucosamine at the reducing end. It is an amino trisaccharide and a galactosamine oligosaccharide.
N-[(3R,4R,5R,6R)-4-[(3R,4R,5R,6R)-3-acetamido-5-hydroxy-6-(hydroxymethyl)-4-[(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