3,7-Dihydro-1,3,7,8-tetramethyl-1H-purine-2,6-dione832-66-6100 % similar Theacrine2309-49-153 % similar Caffeine58-08-250 % similar 1H-Purine-2,6-dione, 3,7-dihydro-1,3,7-trimethyl-, hydrate (1:1)5743-12-446 % similar Etofylline519-37-942 % similar Proxyphylline603-00-940 % similar Acefylline652-37-940 % similar Doxofylline69975-86-640 % similar 8-Chlorotheophylline85-18-738 % similar Diprophylline479-18-538 % similar 1,3-Dimethyluric acid944-73-037 % similar 5,6-Diamino-1,3-dimethyluracil5440-00-637 % similar Theophylline58-55-936 % similar 8-(Dimethylamino)-3,9-dihydro-1,3-dimethyl-1H-purine-2,6-dione5426-47-136 % similar 1,3-Dimethylxanthine monohydrate5967-84-033 % similar Paraxanthine611-59-633 % similar Aminophylline317-34-032 % similar 3,9-Dihydro-1,3-dimethyl-8-(phenylmethyl)-1H-purine-2,6-dione2879-15-431 % similar Theofibrate54504-70-031 % similar