The molecule is alpha-Neup5Ac-(2->3)-beta-D-Galp-(1->4)-D-GlcpNAc with beta configuration at the anomeric position of the reducing-end N-acetyl-D-glucosamine residue. It has a role as an epitope.
(2S,4S,5R,6R)-5-acetamido-2-[(2S,3R,4S,5S,6R)-2-[(2R,3S,4R,5R,6R)-5-acetamido-4,6-dihydroxy-2-(hydroxymethyl)oxan-3-yl]oxy-3,5-dihydroxy-6-(hydroxymethyl)oxan-4-yl]oxy-4-hydroxy-6-[(1R,2R)-1,2,3-trihydroxypropyl]oxane-2-carboxylic acid