SMILES: CC(=O)N[C@@H]1[C@H]([C@@H]([C@H](O[C@H]1O)CO)O[C@@H]2[C@@H]([C@H]([C@H]([C@H](O2)CO)O)O)O)O
Description: The molecule is an amino disaccharide composed of D-galactose and 2-acetamido-2-deoxy-beta-D-glucopyranosyl residues in (alpha-1->4) linkage. It has a role as an epitope. It is an amino disaccharide and a glucosamine oligosaccharide. It derives from a N-acetyl-beta-D-glucosamine and an alpha-D-galactose.