2(1H)-Quinolinone, 3,4-dihydro-6-(1-oxo-4-(4-phenyl-1-piperazinyl)butyl)-, monohydrochloride 6-(1-Oxo-4-(4-phenyl-1-piperazinyl)butyl)-3,4-dihydrocarbostyril monohydrochloride 6-(1-oxo-4-(4-phenyl-1-piperazinyl)butyl)-3,4-dihydro-2(1H)-quinolinone monohydrochloride 80834-49-7