The molecule is an amino trisaccharide comprising N-acetyl-beta-D-galactosaminyl, N-acetyl-beta-D-glucosaminyl and alpha-D-mannose residues linked sequentially (1->4) and (1->2). It is an amino trisaccharide, a glucosamine oligosaccharide and a galactosamine oligosaccharide.
N-[(2S,3R,4R,5R,6R)-2-[(2R,3S,4R,5R,6S)-5-acetamido-4-hydroxy-2-(hydroxymethyl)-6-[(2S,3S,4S,5S,6R)-2,4,5-trihydroxy-6-(hydroxymethyl)oxan-3-yl]oxyoxan-3-yl]oxy-4,5-dihydroxy-6-(hydroxymethyl)oxan-3-yl]acetamide