SMILES: CC(=O)N[C@@H]1[C@H]([C@H]([C@H](O[C@H]1O)CO)OS(=O)(=O)O)O[C@H]2[C@@H]([C@H](C(=C(O2)C(=O)O)O)O)O
Description: The molecule is a Delta(4)-beta-D-GlcpA-(1->3)-D-GalpNAc4S in which the the carbon bearing the anomeric hydroxy group has beta- configuration. It derives from a 4,5-dehydro-D-glucuronic acid and a N-acetyl-beta-D-galactosamine 6-sulfate.