1-Piperazineethanol, 4-(m-chlorobenzyl)-alpha-(1,3-dimethyl-7-xanthinylmethyl)- 19972-01-1 5-26-14-00058 (Beilstein Handbook Reference) BRN 1191940 Theophylline, 7-(3-(4-(m-chlorobenzyl)-1-piperazinyl)-2-hydroxypropyl)-