The molecule is an amino disaccharide consisting of N-acetylglucosamine having an N-acetylgalactosaminyl resiude attached at the 4-position via a beta-linkage. It has a role as an epitope.
N-[(3R,4R,5S,6R)-5-[(2S,3R,4R,5R,6R)-3-acetamido-4,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-2,4-dihydroxy-6-(hydroxymethyl)oxan-3-yl]acetamide