122009-60-3 2-(4-Allyl-1-piperazinyl)-4-pentyloxyquinazoline dihydrochloride 4-(Pentyloxy)-2-(4-(2-propenyl)-1-piperazinyl)quinazoline dihydrochloride Quinazoline, 4-(pentyloxy)-2-(4-(2-propenyl)-1-piperazinyl)-, dihydrochloride