1H-Purine-2,6-dione, 3,7-dihydro-7-(2-(4-(4-chlorophenyl)-1-piperazinyl)ethyl)-1,3-dimethyl- 7-(2-(4-(p-Chlorophenyl)-1-piperazinyl)ethyl)theophylline 81996-49-8 Sgd 275 76 Theophylline, 7-(2-(4-(p-chlorophenyl)-1-piperazinyl)ethyl)-