2,4(1H,3H)-Pteridinedione 2,4(3H,8H)-Pteridinedione 2,4-DIHYDROXYPTERIDINE 2,4-Pteridinediol 27899-40-7 27899-42-9 487-21-8 525-77-9 EINECS 207-652-7 Lumazin Lumazine Lumazine (VAN) (8CI) NSC 225113 NSC 41801 Pteridine-2,4-diol monohydrate Pteridine-2,4-dione