Sildenafil impurity

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Product Name: Sildenafil impurity
CAS No.: 1971915-89-5
Chemical Name: Sildenafil impurity
Synonyms: Sildenafil-002;SildefilImpurity33;Sildenafil Impurity J;Ethyl 4-Ethoxy-3-(1-methyl-7-oxo-3-propyl-6H-pyrazolo[4,3-d]pyrimidin-5-yl)benzenesulfonate;ethyl 4-ethoxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)benzenesulfonate;3-(6,7-Dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-ethoxy-ethyl ester Benzenesulfonic acid;Benzenesulfonic acid, 3-(6,7-dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-ethoxy-, ethyl ester;Sildenafil impurity 9/ 3-(6,7-Dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-ethoxy-ethyl ester Benzenesulfonic acid
CBNumber: CB54665426
Molecular Formula: C19H24N4O5S
Formula Weight: 420.48
MOL File: 1971915-89-5.mol

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Sildenafil impurity Property

Melting point:: 149 - 152°C
Boiling point:: 624.0±65.0 °C(Predicted)
Density: 1.37±0.1 g/cm3(Predicted)
storage temp.: Hygroscopic, -20°C Freezer, Under inert atmosphere
solubility: Chloroform (Slightly), Methanol (Slightly)
form: Solid
pka: 0.36±0.20(Predicted)
color: White to Off-White

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Hazard and Precautionary Statements (GHS)

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N-Bromosuccinimide Price

TRC

Product number: D414610
Product name: 3-(6,7-Dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-ethoxy-ethylesterBenzenesulfonicacid
Packaging: 250mg
Price: $965
Updated: 2021/12/16

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Sildenafil impurity Chemical Properties,Usage,Production

Uses

3-(6,7-Dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-ethoxy-ethyl ester Benzenesulfonic acid is used in the preparation of sildenafil impurity for pharmaceutical quality control by esterification.

Sildenafil impurity Preparation Products And Raw materials

Raw materials

Preparation Products

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1971915-89-5, Sildenafil impurityRelated Search:

4-Amino-2-methyl-5-propyl-2H-pyrazole-3-carboxylic acid 7H-Pyrazolo[4,3-d]pyrimidin-7-one, 5-(5-chloro-2-ethoxyphenyl)-1,6-dihydro-1-methyl-3-propyl- Sildenafil EP IMpurity D Propoxyphenyl Sildenafil DESMETHYL SILDENAFIL Homo Sildenafil Sildenafil DiMer IMpurity SILDENAFIL N-OXIDE 7H-Pyrazolo[4,3-d]pyrimidin-7-one, 1,6-dihydro-5-(2-hydroxyphenyl)-1-methyl-3-propyl- 4-ethoxy-3-(1-methyl-7-oxo-3-propyl-4H-pyrazolo[4,3-d]pyrimidin-5-yl)benzenesulfonamide 1-Methyl-4-nitro-3-propyl-(1H)-pyrazole-5-carboxamide 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 1-METHYL-4-NITRO-3-PROPYL-1H-PYRAZOLE-5-CARBOXYLIC ACID 1H-PYRAZOLE-5-CARBOXAMIDE, 4-[[2-ETHOXY-5-[(4-METHYL-1-PIPERAZINYL)SULFONYL]BENZOYL]AMINO]-1-METHYL-3-PROPYL- 1-Piperazinesulfonicacid,4-methyl-(9CI) 2-ETHOXY-5-[(4-METHYLPIPERAZIN-1-YL)SULFONYL]BENZOIC ACID 5-CHLOROSULFONYL-2-ETHOXYBENZOIC ACID

Sildenafil-002

Sildenafil Impurity J

Sildenafil impurity 9/ 3-(6,7-Dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-ethoxy-ethyl ester Benzenesulfonic acid

ethyl 4-ethoxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)benzenesulfonate

3-(6,7-Dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-ethoxy-ethyl ester Benzenesulfonic acid

SildefilImpurity33

Ethyl 4-Ethoxy-3-(1-methyl-7-oxo-3-propyl-6H-pyrazolo[4,3-d]pyrimidin-5-yl)benzenesulfonate

Benzenesulfonic acid, 3-(6,7-dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-ethoxy-, ethyl ester

1971915-89-5