The molecule is a branched amino trisaccharide comprising N-acetyl-D-galactose having a beta-D-galactosyl residue at the 3-position and a N-acetyl-beta-D-glucosaminyl residue at the 6-position. It has a role as an epitope. It is an amino trisaccharide, a glucosamine oligosaccharide and a galactosamine oligosaccharide.
N-[(2R,3R,4R,5S,6R)-2-[[(2R,3R,4R,5R)-5-acetamido-3,6-dihydroxy-4-[(2R,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-2-yl]methoxy]-4,5-dihydroxy-6-(hydroxymethyl)oxan-3-yl]acetamide