5,6-Diamino-1,3-dimethyluracil5440-00-6100 % similar Theacrine2309-49-145 % similar 5,6-Diamino-1-methyluracil6972-82-343 % similar 6-Amino-1,3-dimethyluracil6642-31-537 % similar 3,7-Dihydro-1,3,7,8-tetramethyl-1H-purine-2,6-dione832-66-637 % similar Caffeine58-08-236 % similar Theophylline58-55-936 % similar 8-Chlorotheophylline85-18-735 % similar Aminophylline317-34-035 % similar 1,3-Dimethyluric acid944-73-034 % similar Caffeine monohydrate5743-12-433 % similar 1,3-Dimethylxanthine monohydrate5967-84-033 % similar 8-(Dimethylamino)-3,9-dihydro-1,3-dimethyl-1H-purine-2,6-dione5426-47-133 % similar 2-Methoxy-1,7,9-trimethylpurine-6,8-dione51168-26-431 % similar 6-Amino-1,3-diethyl-5-nitroso-2,4(1H,3H)-pyrimidinedione89073-60-931 % similar Etofylline519-37-930 % similar