Sildenafil Citrate 171599-83-0

  • CasNo:171599-83-0
  • Molecular Formula:C6H8O7*C22H30N6O4S
  • Purity:
  • Molecular Weight:
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Product Details

171599-83-0 Name

Name

Sildenafil citrate

Synonym

Viagra, Sildenafil citrate;1-[[3-(4,7-Dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-ethoxyphenyl]sulfonyl]-4-methylpiperazine citrate salt;5-[2-Ethoxy-5-(4-methylpiperazin-1-yl)sulfonylphenyl]-1-methyl-3-propyl-4H-pyrazolo[5,4-e]pyrimidin-7-one citrate salt;1-[[3-(6,7-Dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-ethoxyphenyl]sulfonyl]-4-methylpiperazine, 2-hydroxy-1,2,3-propanetricarboxylate;Sildenafil Citrate (100 mg);Sildenafil citrate, >=99%;Sildenafil citrate, Professional supply;5-[2-Ethoxy-5-[(4-methyl-piperazin-1-yl)sulfonyl]phenyl]-1,6-dihydro-1-methyl-3-propyl-7H-pyrazolo[4,3-d]pyrimidin-7-one citrate

 

171599-83-0 Chemical & Physical Properties

Melting point 

187-189ºC

Boiling point

672.4ºC at 760 mmHg

Density

1.447g/cm3

Molecular Formula

C28H38N6O11S

Molecular Weight

666.700

Flash Point

360.5ºC

PSA

253.93000

LogP

1.31900

Exact Mass

666.231934

Vapour Pressure

0mmHg at 25°C

Storage condition

Desiccate at RT

Stability

Store in Freezer

Index of Refraction

1.683

 

171599-83-0 Description

Sildenafil Citrate is the citrate salt form of sildenafil, an orally bioavailable pyrazolopyrimidinone derivative structurally related to zaprinast, with vasodilating and potential anti-inflammatory activities. Upon oral administration, sildenafil selectively targets and inhibits cyclic guanosine monophosphate (cGMP)-specific phosphodiesterase type 5 (PDE5), thereby inhibiting the PDE5-mediated degradation of cGMP found in smooth muscle and increasing cGMP availability. This results in prolonged smooth muscle relaxation in the corpus cavernosum of the penis, thereby causing vasodilation, blood engorgement and a prolonged penile erection.  In the smooth muscle of the pulmonary vasculature, the increase in cGMP results in smooth muscle relaxation, vasodilation of the pulmonary vascular bed, relieving pulmonary hypertension and increasing blood flow in the lungs. In addition, sildenafil may reduce airway inflammation and mucus production.

 

171599-83-0 Uses

Sildenafil citrate is an orally active selective type 5 cgmp phosphodiesterase inhibitor that is used in the treatment of erectile dysfunction and primary pulmonary hypertension.