1-Piperazineethanol, alpha-(1,3-dimethyl-7-xanthinylmethyl)-4-(p-isopropylbenzyl)- 19976-95-5 5-26-14-00058 (Beilstein Handbook Reference) BRN 0594391 Theophylline, 7-(2-hydroxy-3-(4-(p-isopropylbenzyl)-1-piperazinyl)propyl)-