123941-50-4 3,4-Dihydro-6-(4-(4-oxo-4-phenylbutyl)-1-piperazinylcarbonyl)-2(1H)-quinolinone Opc 8490 Opc-8490 Piperazine, 1-(4-oxo-4-phenylbutyl)-4-((1,2,3,4-tetrahydro-2-oxo-6-quinolinyl)carbonyl)-, 2-hydroxy-1,2,3-propanetricarboxylate (1:1)