Synonyms:

4-Ethoxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo-[4,3-d]pyrimidin-5-yl)benzene-1-sulfo;4-Ethoxy-3-(6,7-dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl)benzene-1-sulfonyl chloride;Sildenafil　intermediate;4-Ethoxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl);4-Ethoxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo-[4,3-d]pyrimidin-5-yl)benzene-1-su;Sildenafil Impurity 7;5-(5-Chlorosulfonyl-2-ethoxyphenyl)-1-methyl-3-propyl-1,6-dihydro-7H-pyrazole[4,3-d]pyrimidine-7-one;Methisosildenafil-004

Density:1.48±0.1g/cm3(Predicted)

Melting Point: 180-182°C

Storage: -20°CFreezer,UnderInertAtmosphere

PKA: 9.87±0.20(Predicted)