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]3[C@H]([C@@H]([C@H]([C@@H](O3)OC[C@@H]4[C@H]([C@@H]([C@H]([C@H](O4)OP(=O)(O)O)N)O)O)N)O)OP(=O)(O)O)[C@@H](CO)O)O)O
Description: The molecule is an amino tetrasaccharide antigen consisting of two 3-deoxy-D-manno-oct-2-ulose residues and two glucosamine residues (one at the reducing end) in a linear sequence, with two phosphate groups attached. It has a role as an antigen.