SMILES: C[C@H]1[C@H]([C@H]([C@@H]([C@@H](O1)O[C@@H]2[C@H]([C@H]([C@H](O[C@H]2O[C@@H]3[C@H](OC([C@@H]([C@H]3O[C@H]4[C@H]([C@@H]([C@@H]([C@@H](O4)C)O)O)O)NC(=O)C)O)CO)CO)O)O)O)O)O
Description: The molecule is a branched amino tetrasaccharide consisting of N-acetyl-D-glucosamine at the reducing end having an alpha-L-fucosyl residue attached at the 3-position and an alpha-L-fucosyl-(1->2)-beta-D-galactosyl moiety attached at the 4-position. It has a role as an antigen. It is an amino tetrasaccharide and a glucosamine oligosaccharide.