Levosimendan Dimer Simendan Levosimendan Impurity 16 3(2H)-Pyridazinone, 6-[4-(ethylamino)phenyl]-4,5-dihydro-5-methyl- 4-Amino-6-ethoxy-5-[[4-[(4R)-1,4,5,6-tetrahydro-4-methyl-6-oxo-3-pyridazinyl]phenyl]azo]-α-[[4-[(4R)-1,4,5,6-tetrahydro-4-methyl-6-oxo-3-pyridazinyl]phenyl]hydrazono]-2-pyrimidineacetonitrile Levosimendan Impurity 8 LEVODOPA RELATED COMPOUND A (50 MG) (3-(3,4,6-TRIHYDROXYPHENYL)-ALANINE) (S)-3(2h)-Pyridazinone, 6-(4-Aminophenyl)-4,5-Dihydro-5-Methyl- 2-[2-[4-(2-Azidotetrahydro-3-Methyl-5-oxo-2-furanyl)phenyl]hydrazinylidene]propanedinitrile (Mixture of DiasteroMers) (R)-N-Acetyl-6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone Levosimendan Impurity 4 (R)-6-(4-Aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone 6-(4-Aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone LevosiMendan iMpurity Levosimendan