The molecule is a branched amino pentasaccharide consisting of a linear chain of four alpha-linked D-mannose residues, with an N-acetyl glucosamine residue joined to residue 3, also via an alpha-linkage. It is a glucosamine oligosaccharide, an amino pentasaccharide and a (1->3)-alpha-D-mannooligosaccharide derivative.
N-[(2R,3R,4R,5S,6R)-2-[(2R,3S,4S,5R,6R)-2-[(2R,3S,4S,5S,6R)-4,5-dihydroxy-6-(hydroxymethyl)-2-[(3S,4S,5S,6R)-2,4,5-trihydroxy-6-(hydroxymethyl)oxan-3-yl]oxyoxan-3-yl]oxy-5-hydroxy-6-(hydroxymethyl)-4-[(2R,3S,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-3-yl]oxy-4,5-dihydroxy-6-(hydroxymethyl)oxan-3-yl]acetamide