Sildenafil and Impurities by Pharmaffiliates

Pharmaffiliates Analytics and Synthetics Pvt. Ltd, a substantial and predominant name as manufacturer and supplier of impurity standards globally, proudly introduces a wide range of premium quality products at highly competitive prices.

Sildenafil is an eminent first-line therapy for erectile dysfunction and works by selectively inhibiting phosphodiesterase type 5, which allows corpus cavernosum smooth muscle to relax, potentiating erections during sexual stimulation. 

Pharmaffiliates offers a vast variety of Sildenafil impurity standards which includes both commercially available and unavailable standards. All the standards are provided in the pack size of 25mg of 50mg and these packs can be customized as per customer's requirement also.

Each standard is shipped with a Certificate of Analysis, MSDS, and all the required documentation to ensure statutory domestic and international reputations. Our standards are of high purity and are scientifically characterized.

Our laboratory and quality systems have successfully passed major second and third party audits which include NABL accreditation, ISO Guide 34 and USFDA.

Pharmaffiliates offers below listed impurity standards of Sildenafil:

Name of the impurity	Product Code	CAS No.	Application
Sildenafil - impurity A	PA 19 09010	1391053-95-4	An impurity (Isobutyl Sildenafil
Sildenafil - impurity B	PA 19 09020	1094598-75-0	A prodrug (Sildenafil N-oxide)
Sildenafil - impurity C	PA 19 09030	139755-91-2	A metabolite (Desethyl Sildenafil)
Sildenafil - impurity D	PA 19 09040	1357931-55-5	An impurity (Demethylpiperazinyl Sildenafil Sulfonic Acid)
Sildenafil - impurity E	PA 19 09050	288-32-4	By-product (Imidazole)
Sildenafil - impurity G	PA 19 09070	1346602-67-2	Dimer impurity
Sildenafil aldehyde	PA 19 09510	332374-42-2	Intermediate in synthesis
Sildenafil amino amide impurity	PA 19 09520 (Freebase)/ PA 19 09530 (Hydrochloride salt)	139756-02-8/ 247584-10-7	Intermediate in synthesis
Sildenafil chloro impurity	PA 19 09540	42926-52-3	Important reactant for Sildenafil synthesis
Sildenafil carboxamide impurity	PA 19 09550	139756-03-9	An impurity
Sildenafil lactam impurity	PA 19 09560	139756-21-1	An impurity
Sildenafil chlorosulfonyl impurity	PA 19 09570	139756-22-2	An impurity
N-Desmethyl Sildenafil	PA 19 09580	139755-82-1	An active metabolite
4-Ethoxy-N,N-bis(2-hydroxyethyl)-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1h-pyrazolo[4,3-d]pyrimidin-5-yl)benzenesulfonamide	PA 19 09590	NA	An impurity
O-Desethyl-o-propyl methisosildenafil	PA 19 09600	1391053-82-9	An analog
Propoxyphenyl homohydroxy Sildenafil	PA 19 09610	139755-87-6	An analog of Homo Sildenafil
Propoxyphenyl Sildenafil	PA 19 09620	877777-10-1	An impurity
Descarbon Sildenafil	PA 19 09630	1393816-99-3	An analog
5-(5-Carboxy-2-ethoxyphenyl)-1-methyl-3-N-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one	PA 19 09640	147676-78-6	A metabolite of Gendenafil, an analog of Sildenafil
4-Amino-1-methyl-5-propyl-1h-pyrazole-3-carboxamide	PA 19 09650	247583-78-4	An intermediate
Sildenafil amide impurity	PA 19 09660	139756-01-7	An impurity
Sildenafil methyl sulfonate ester impurity	PA 19 09670	NA	An impurity
1-Methyl-4-nitro-3-propyl-1h-pyrazole-5-carboxylic acid	PA 19 09680	139756-00-6	An intermediate
Demethylpiperazinyl Iso Sildenafil sulfonyl chloride	PA 19 09690	501120-42-9	An intermediate of Sildenafil and Iso Sildenafil
(Z)-N'-(5-Chloro-4-methyl-2-propyl-1H-imidazol-1-yl)-2-ethoxy-5-((4-ethylpiperazin-1-yl)sulfonyl)benzimidamide	PA 19 09700	NA	An impurity
(Z)-N'-(5-Chloro-4-methyl-2-propyl-1H-imidazol-1-yl)-2-ethoxybenzimidamide	PA 19 09710	NA	An impurity

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