1-(Benzoilopropylo)-4-metylo-piperazyna 2HCl [Polish] 4-(4-Methyl-1-piperazinyl)butyrophenone dihydrochloride 98897-35-9 BUTYROPHENONE, 4-(4-METHYL-1-PIPERAZINYL)-, DIHYDROCHLORIDE TT-16-80