1,3-Dimethyl-8-chloroxanthine 1H-Purine-2,6-dione, 8-chloro-3,7-dihydro-1,3-dimethyl- (9CI) 8-Chloro-3,7-dihydro-1,3-dimethyl-1H-purine-2,6-dione 8-Chlorotheophylline 85-18-7 EINECS 201-590-4 NSC 6113 Theophylline, 8-chloro-