SMILES: C1[C@H]([C@H]([C@H](O[C@]1(CO)O[C@@H]2C[C@@](O[C@@H]([C@@H]2O)[C@@H](CO)O)(C(=O)O)O)[C@@H](CO)O)O)O
Description: The molecule is a disaccharide comprising 3-deoxy-alpha-D-manno-oct-2-ulopyranose (Kdo) having a 3-deoxy-alpha-D-manno-oct-2-ulopyranosyl (Kdo-CH2OH) residue attached at the 4-position. It has a role as an antigen.