SMILES: C1C(N=C2C(=O)NC(=O)N=C2N1C[C@@H]([C@@H]([C@@H](CO)O)O)O)CO
Description: The molecule is the pteridine that is lumazine reduced across the C-6,C-7-double bond and substituted with a hydroxymethyl group at C-6 and a 1-D-ribityl group at N-8. It derives from a ribitol and a lumazine.