Aripiprazole Impurity 4

Chemical Name: 2(1H)​-​Quinolinone, 7-​[4-​[4-​(2,​3-​dichlorophenyl)​-​1-​piperazinyl]​butoxy]​-​3,​4-​dihydro-​1-​[4-​[(1,​2,​3,​4-​tetrahydro-​2-​oxo-​7-​quinolinyl)​oxy]​butyl]​-; 7-[4-[4-(2,3-Dichlorophenyl)-1-piperazinyl]butoxy]-3,4-dihydro-1-[4-[(1,2,3,4-tetrahydro-2-oxo-7-quinolinyl)oxy]butyl]-2(1H)-quinolinone;