1-Methyl-4-hydroxy-2-chinolon (CZECH) 1-Methyl-4-hydroxycarbostyril 1677-46-9 2(1H)-Quinolinone, 4-hydroxy-1-methyl- 4-Hydroxy-1-methyl-2(1H)-quinolinone 4-Hydroxy-1-methyl-2(1H)-quinolone 4-Hydroxy-1-methyl-2-quinolone 4-Hydroxy-1-methylcarbostyril 4-Hydroxy-N-methylcarbostyril AIDS-124601 AIDS124601 Carbostyril, 4-hydroxy-1-methyl- N-Methyl-4-hydroxykarbostyril (CZECH) NSC39973