The molecule is beta-D-GlcpNAc-(1->6)-D-GalpNAc in which the anomeric configuration of the reducing-end GalNAc residue is alpha. It has a role as an epitope.
N-[(2S,3R,4R,5R,6R)-6-[[(2R,3R,4R,5S,6R)-3-acetamido-4,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxymethyl]-2,4,5-trihydroxyoxan-3-yl]acetamide