Sildenafil Impurity 21 Chemical Properties

Boiling point:

428.1±45.0 °C(Predicted)

Density 

1.34±0.1 g/cm3(Predicted)

pka

8.17±0.30(Predicted)

Sildenafil Impurity 21 Usage And Synthesis

Uses

4-[(2-Hydroxybenzoyl)amino]-1-methyl-3-propyl-1H-pyrazole-5-carboxamide is an intermediate used in the synthesis of Desethyl Gendenafil (D290470), which could be a possible metabolite of Gendenafil (G349960) based on the metabolic pathway of Sildenafil (S435000, Citrate salt), an analogue of Gendenafil.

Sildenafil Impurity 21(269394-18-5)Related Product Information

• 7H-Pyrazolo[4,3-d]pyrimidin-7-one, 5-[2-ethoxy-5-(methylsulfonyl)phenyl]-1,6-dihydro-1-methyl-3-propyl-
• 2-METHYL-4-NITRO-2H-PYRAZOLE-3-CARBOXYLIC ACID
• (2-ethoxyphenyl)(4-methylpiperazin-1-yl)methanone
• Norneosildenafil
• Benzoic acid, 2-ethoxy-5-[(4-methyl-1-piperazinyl)sulfonyl]-, methyl ester
• 4-ethoxy-3-(1-methyl-7-oxo-3-propyl-4H-pyrazolo[4,3-d]pyrimidin-5-yl)benzenesulfonamide
• 4-Nitro-3-propyl-1H-pyrazole-5-carboxamide
• 1H-Pyrazole-3-carboxamide, 4-[(2-ethoxybenzoyl)amino]-5-propyl-
• 7H-Pyrazolo[4,3-d]pyrimidin-7-one, 5-[2-ethoxy-5-[[4-(hydroxymethyl)-1-piperazinyl]sulfonyl]phenyl]-1,6-dihydro-1-methyl-3-propyl-
• 5-[2-Ethoxy-5-[(4-Methyl-4-oxido-1-piperazinyl)sulfonyl]phenyl]-1,6-dihydro-1-Methyl-3-(2-Methylpropyl)-7H-pyrazolo[4,3-d]pyriMidin-7-one
• Desethyl Sildenafil
• 5-chloro-2-ethoxybenzoyl chloride
• 4-(2-Ethoxy benzamido)-1-methyl-3-n-propyl pyrazole-5-carboxamide.
• 1H-Pyrazole-5-carboxamide, 4-amino-3-propyl-
• 3-[6,7-Dihydro-1-methyl-3-(2-methylpropyl)-7-oxo-1H-pyrazolo[4,3-d]pyrimidin-5-yl]-4-ethoxybenzenesulfonyl Chloride
• Ethyl 2-ethoxy-5-((4-methylpiperazin-1-yl)sulfonyl)benzoate
• 5-chloro-2-ethoxybenzoic acid
• 4-nitro-5-propyl-1H-pyrazole-3-carboxylic acid