1,3-Dimethyl-8-phenylxanthine 1H-Purine-2,6-dione, 2,3,6,7-tetrahydro-1,3-dimethyl-8-phenyl- 1H-Purine-2,6-dione, 3,7-dihydro-1,3-dimethyl-8-phenyl- (9CI) 8-Phenyltheophylline 961-45-5 NSC 14127 Theophylline, 8-phenyl-