Synonyms: Propanedinitrile,[[4-(1,4,5,6-tetrahydro-4-methyl-6-oxo-3-pyridazinyl)phenyl]hydrazono]- (9CI);((4-(1,4,5,6-Tetrahydro-4-methyl-6-oxo-3-pyridazinyl)phenyl)hydrazono)propanedinitrile;2-[[4-(4-Methyl-6-oxo-4,5-dihydro-1H-pyridazin-3-yl)phenyl]hydrazinylidene]propanedinitrile;