Synonyms: N-[4-((2-Oxo-1,2-dihydroquinolin-7-yl)oxy)butyl] Brexpiprazole, 2(1H)-Quinolinone, 7-[4-(4-benzo[b]thien-4-yl-1-piperazinyl)butoxy]-1-[4-[(1,2-dihydro-2-oxo-7-quinolinyl)oxy]butyl]- (ACI), 7-[4-(4-Benzo[b]thien-4-yl-1-piperazinyl)butoxy]-1-[4-[(1,2-dihydro-2-oxo-7-quinolinyl)oxy]butyl]-2(1H)-quinolinone (ACI)