2(1H)-Quinolinone, 3,4-dihydro-6-(1,4,5,6-tetrahydro-4-methyl-6-oxo-3-pyridazinyl)- 3,4-Dihydro-6-(1,4,5,6-tetrahydro-4-methyl-6-oxo-3-pyridazinyl)-2(1H)-quinolinone 6-(5-Methyl-3-oxo-2,3,4,5-tetrahydropyridazin-6-yl)-1,2,3,4-tetrahydroquinolin-2-one 70386-07-1