SMILES: C[C@@H]1[C@H]([C@@H]([C@H]([C@@H](O1)O[C@@H]2[C@@H]([C@H]([C@H](O[C@@H]2C(=O)N)O[C@@H]3[C@@H]([C@H]([C@H](O[C@@H]3C(=O)N)O[C@@H]4[C@H]([C@@H](O[C@@H]([C@H]4O)C)O)NC(=O)C)NC(=O)C)O)NC(=O)C)O)O)O)NC=O
Description: The molecule is an amino tetrasaccharide comprising a 4-deoxy-4-formamido-beta-D-quinovose residue, two 2-acetamido-2-deoxy-alpha-D-galacturonamide residues and an N-acetyl-beta-D-quinovosamine residue linked in a (1->4), (1->4), (1->3) sequence.