SMILES: CC(=O)N[C@@H]1[C@H]([C@H]([C@H](O[C@@H]1OP(=O)([O-])OP(=O)([O-])OC[C@@H]2[C@H]([C@H]([C@@H](O2)N3C=CC(=O)NC3=O)O)O)CO)OS(=O)(=O)[O-])O
Description: The molecule is a UDP-N-acetyl-D-galactosamine 4-sulfate(4-) in which the anomeric centre of the galactosamine fragment has alpha-configuration It is a conjugate base of an UDP-N-acetyl-alpha-D-galactosamine 4-sulfate.