Ibmx28822-58-4100 % similar Theophylline58-55-965 % similar 1,3-Dimethylxanthine monohydrate5967-84-060 % similar Aminophylline317-34-058 % similar Englate8000-10-047 % similar 1-Methylxanthine6136-37-441 % similar Proxyphylline603-00-939 % similar 3-Methylxanthine1076-22-838 % similar 8-Chlorotheophylline85-18-737 % similar Furafylline80288-49-936 % similar 1,3-Dimethyluric acid944-73-036 % similar 3,9-Dihydro-1,3-dimethyl-8-(phenylmethyl)-1H-purine-2,6-dione2879-15-436 % similar Doxofylline69975-86-636 % similar Caffeine58-08-235 % similar 8-(Dimethylamino)-3,9-dihydro-1,3-dimethyl-1H-purine-2,6-dione5426-47-135 % similar Diprophylline479-18-534 % similar Etofylline519-37-933 % similar 1H-Purine-2,6-dione, 3,7-dihydro-1,3,7-trimethyl-, hydrate (1:1)5743-12-433 % similar Pentifylline1028-33-732 % similar Theacrine2309-49-132 % similar