SMILES: CC(=O)N[C@@H]1[C@H](C[C@@](O[C@H]1[C@@H]([C@@H](CO)O)O)(C(=O)O)OC[C@@H]2[C@@H]([C@@H]([C@H](C(O2)O)NC(=O)C)O[C@H]3[C@@H]([C@H]([C@H]([C@H](O3)CO)O)O[C@@]4(C[C@@H]([C@H]([C@@H](O4)[C@@H]([C@@H](CO)O)O)NC(=O)C)O)C(=O)O)O)O)O
Description: The molecule is a branched amino tetrasaccharide consisting of a linear sequence of alpha-neuraminyl, beta-D-galactosyl and N-acetyl-D-galactosamine residues linked (2->3) and (1->6), to the N-acetyl-D-galactosamine residue of which is also linked (2->6) another alpha-neuraminyl residue. It has a role as an epitope. It is an amino tetrasaccharide and a galactosamine oligosaccharide.