SMILES: C([C@@H]1[C@H]([C@@H]([C@H]([C@H](O1)O)N)O)O[C@H]2[C@@H]([C@H]([C@@H]([C@@H](O2)C(=O)O)O)O)O)O
Description: The molecule is a heparan composed of a backbone of repeating alpha-L-iduronosyl-(1->4)-alpha-D-glucosamine units joined by (1->4)-linkages. It derives from a L-idopyranuronic acid. It is a tautomer of a heparosan L-iduronic acid zwitterion.