1-Piperazineethanol, 4-(p-chlorobenzyl)-alpha-(1,3-dimethyl-7-xanthinylmethyl)-, benzoate (ester) 19977-10-7 5-26-14-00060 (Beilstein Handbook Reference) 7-(2-Benzoyloxy-3-(4-(p-chlorobenzyl)-1-piperazinyl)propyl)theophylline BRN 0601227 Theophylline, 7-(2-benzoyloxy-3-(4-(p-chlorobenzyl)-1-piperazinyl)propyl)-