Synonyms: 5-(p-Acetylaminophenyl)-6-methyl-4,5-dihydro-3(2H)-pyridazinone;N-(4-(1,4,5,6-Tetrahydro-3-methyl-6-oxo-4-pyridazinyl)phenyl)acetamide;Acetamide, N-(4-(1,4,5,6-tetrahydro-3-methyl-6-oxo-4-pyridazinyl)phenyl)-;117903-08-9;AC1MJ9UZ;LS-10255;N-[4-(3-methyl-6-oxo-4,5-dihydro-1H-pyridazin-4-yl)phenyl]acetamide