The molecule is a linear amino tetrasaccharide comprising alpha-L-fucose, beta-D-galactose, N-acetyl-beta-D-glucose and N-acetyl-alpha-glucose residues linked sequentially (1->2), (1->4) and (1->6). It is an amino tetrasaccharide, a glucosamine oligosaccharide and a galactosamine oligosaccharide.
N-[(2S,3R,4R,5R,6R)-6-[[(2R,3R,4R,5S,6R)-3-acetamido-5-[(2S,3R,4S,5R,6R)-4,5-dihydroxy-6-(hydroxymethyl)-3-[(2S,3S,4R,5S,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxyoxan-2-yl]oxy-4-hydroxy-6-(hydroxymethyl)oxan-2-yl]oxymethyl]-2,4,5-trihydroxyoxan-3-yl]acetamide