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)OS(=O)(=O)O)OS(=O)(=O)O)O)O
Description: The molecule is an amino disaccharide that consists of N-acetyl-beta-D-glucosamine having a 3,4-di-O-sulfo-beta-D-galactosyl residue attached at position 4. It has a role as an epitope. It is an oligosaccharide sulfate and an amino disaccharide.