The molecule is a linear amino trisaccharide consisting of alpha-KDN, beta-D-galactose and N-acetyl-D-glucosamine residues linked sequentially (2->6) and (1->4). It has a role as an epitope. It is an amino trisaccharide and a glucosamine oligosaccharide.
(2R,4S,5R,6R)-2-[[(2R,3R,4S,5R,6S)-6-[(2R,3S,4R,5R)-5-acetamido-4,6-dihydroxy-2-(hydroxymethyl)oxan-3-yl]oxy-3,4,5-trihydroxyoxan-2-yl]methoxy]-4,5-dihydroxy-6-[(1R,2R)-1,2,3-trihydroxypropyl]oxane-2-carboxylic acid