The molecule is a linear amino trisaccharide consisting of N-acetyl-beta-D-glucosamine at the reducing end having a beta-D-galactosyl-(1->4)-beta-D-glucosyl group attached at the 6-position. It is an amino trisaccharide and a glucosamine oligosaccharide.
N-[(2R,3R,4R,5S,6R)-6-[[(2R,3R,4R,5S,6R)-3,4-dihydroxy-6-(hydroxymethyl)-5-[(2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-2-yl]oxymethyl]-2,4,5-trihydroxyoxan-3-yl]acetamide