1-Isonicotinoyl-4-(2-quinolyl)piperazine monohydrochloride 101153-54-2 Piperazine, 1-(4-pyridinylcarbonyl)-4-(2-quinolinyl)-, monohydrochloride Piperazine, 1-isonicotinoyl-4-(2-quinolyl)-, monohydrochloride