132560-15-7 1H-Purine-2,6-dione, 3,7-dihydro-1,3-bis(2-methylpropyl)-8-ethyl- 3,7-Dihydro-1,3-bis(2-methylpropyl)-8-ethyl-1H-purine-2,6-dione BRN 4199764 Xanthine, 1,3-diisobutyl-8-ethyl-