1,3-Dimethylxanthine monohydrate5967-84-0100 % similar Theophylline58-55-991 % similar Aminophylline317-34-078 % similar Englate8000-10-062 % similar Ibmx28822-58-460 % similar 1H-Purine-2,6-dione, 3,7-dihydro-1,3,7-trimethyl-, hydrate (1:1)5743-12-449 % similar 8-Chlorotheophylline85-18-748 % similar 1,3-Dimethyluric acid944-73-047 % similar 3-Methylxanthine1076-22-845 % similar 1-Methylxanthine6136-37-445 % similar 3,9-Dihydro-1,3-dimethyl-8-(phenylmethyl)-1H-purine-2,6-dione2879-15-445 % similar 8-(Dimethylamino)-3,9-dihydro-1,3-dimethyl-1H-purine-2,6-dione5426-47-144 % similar Caffeine58-08-242 % similar Theacrine2309-49-139 % similar Etofylline519-37-939 % similar Diprophylline479-18-538 % similar Pamabrom606-04-238 % similar Proxyphylline603-00-937 % similar Acefylline652-37-937 % similar Oxtriphylline4499-40-537 % similar