SMILES: C=CCO[C@@]1(C[C@H]([C@H]([C@H](O1)[C@@H](CO[C@@]2(C[C@H]([C@H]([C@H](O2)[C@@H](CO)O)O)O)C(=O)O)O)O)O)C(=O)O
Description: The molecule is a disaccharide derivative consisting of two 3-deoxy-alpha-D-manno-oct-2-ulopyranonosyl units joined via an alpha-(2->8)-linkage with an O-allyl group at the anomeric centre. It has a role as an antigen.