13666-69-8 2,4(1H,3H)-Quinazolinedione, 6-chloro-3-(5-(4-phenyl-1-piperazinyl)pentyl)-, dihydrochloride 6-Chloro-3-(5-(4-phenyl-1-piperazinyl)pentyl)-2,4(1H,3H)-quinazolinedione dihydrochloride