1-Methyl-2(1H)-quinolinone 1-Methyl-2(1H)-quinolone 1-Methyl-2-quinolone 1-Methylcarbostyril 2(1H)-Quinolinone, 1-methyl- 606-43-9 Carbostyril, 1-methyl- N-Methylcarbostyril NSC5873