英文别名Mesoxalonitrile (±)-(p-(1,4,5,6-Tetrahydro-4-methyl-6-oxo-3-pyridazinyl)phenyl)hydrazone; (±)-((4-(1,4,5,6-Tetrahydro-4-methyl-6-oxo-3-pyridazinyl)phenyl)hydrazono)propanedinitrile; LEVOFLUOROCARBOXYLICACID; {2-[4-(4-methyl-6-oxo-1,4,5,6-tetrahydropyridazin-3-yl)phenyl]hydrazinylidene}propanedinitrile; {[4-(4-Methyl-6-oxo-1,4,5,6-tetrahydro-3-pyridazinyl)phenyl]hydrazono}malononitrile; levosimendan; Propanedinitrile, 2-[2-[4-(1,4,5,6-tetrahydro-4-methyl-6-oxo-3-pyridazinyl)phenyl]hydrazinylidene]-; Propanedinitrile, ((4-(1,4,5,6-tetrahydro-4-methyl-6-oxo-3-pyridazinyl)phenyl)hydrazono)-; simendanum; 1-cyano-N-(4-(6-hydroxy-4-methyl-4,5-dihydropyridazin-3-yl)phenyl)methanecarbohydrazonoyl cyanide; Simendan [INN]; 2-[[4-(4-methyl-6-oxo-4,5-dihydro-1H-pyridazin-3-yl)phenyl]hydrazinylidene]propanedinitrile; Levosimendan Impurity 16; Simsndan; OR-1259; (4-(4-methyl-6-oxo-1,4,5,6-tetrahydropyridazin-3-yl)phenyl)carbonohydrazonoyl dicyanide; [4-(4-Methyl-6-oxo-1,4,5,6-tetrahydropyridazin-3-yl)phenyl]carbonohydrazonoyl dicyanide 
