1H-Purine-2,6-dione, 3,7-dihydro-7-phenyl-1,3-dimethyl- 3,7-Dihydro-7-phenyl-1,3-dimethyl-1H-purine-2,6-dione 5-26-13-00566 (Beilstein Handbook Reference) 960-61-2 BRN 0553490 Theophylline, 7-phenyl-