Proxyphylline603-00-9100 % similar Diprophylline479-18-572 % similar Doxofylline69975-86-667 % similar Etofylline519-37-964 % similar Acefylline652-37-962 % similar Caffeine58-08-256 % similar 1H-Purine-2,6-dione, 3,7-dihydro-1,3,7-trimethyl-, hydrate (1:1)5743-12-452 % similar Xanthinol nicotinate437-74-145 % similar Theofibrate54504-70-042 % similar Theacrine2309-49-140 % similar 3,7-Dihydro-1,3,7,8-tetramethyl-1H-purine-2,6-dione832-66-640 % similar Theophylline58-55-940 % similar Ibmx28822-58-439 % similar Pentifylline1028-33-739 % similar (αS)-6-Amino-α-methyl-9H-purine-9-ethanol14047-27-938 % similar (αR)-6-Amino-α-methyl-9H-purine-9-ethanol14047-28-038 % similar 3,7-Dihydro-3-methyl-7-propyl-1H-purine-2,6-dione55242-64-338 % similar 1,3-Dimethylxanthine monohydrate5967-84-037 % similar Aminophylline317-34-036 % similar Paraxanthine611-59-635 % similar