1-Piperazineethanol, alpha-(1,3-dimethyl-7-xanthinylmethyl)-4-(p-isopropylbenzyl)-, benzoate (ester) 19977-12-9 5-26-14-00060 (Beilstein Handbook Reference) BRN 0601476 Theophylline, 7-(2-benzoyloxy-3-(4-(p-isopropylbenzyl)-1-piperazinyl)propyl)-