SMILES: C1[C@H]([C@H]([C@H](O[C@]1(C(=O)O)O[C@@H]2C[C@@](O[C@@H]([C@@H]2O)[C@@H](CO)O)(C(=O)O)OC[C@H]([C@@H]3[C@@H]([C@@H](C[C@@](O3)(C(=O)O)O[C@@H]4C[C@@](O[C@@H]([C@@H]4O)[C@@H](CO)O)(C(=O)O)O)O)O)O)[C@@H](CO)O)O)O
Description: The molecule is a tetrasaccharide consisting of four 3-deoxy-D-manno-oct-2-ulose residues in a linear sequence, joined via alpha-linkages. It has a role as an epitope.