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CAS 139755-83-2 Oral tablets Natural Male Enhancement Steroids Sildenafil Citrate For Men

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CAS 139755-83-2 Oral tablets Natural Male Enhancement Steroids Sildenafil Citrate For Men

Brand Name : Pharmlab
Model Number : 171599-83-0
Certification : ISO 9001, USP,GMP
Place of Origin : China
MOQ : 10g
Price : negotiation
Payment Terms : Western Union, MoneyGram, T/T,Bitcoin
Supply Ability : Mass in stock
Delivery Time : 3~5 work days
Packaging Details : Discreet ways of packing for Customs pass guaranteed
Product Name : Sildenafil citrate
CAS : 171599-83-0
MF : C28H38N6O11S
MW : 666.7
Appearance : White Solid
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CAS 171599-83-0 Oral tablets Natural Male Enhancement Steroids Sildenafil Citrate For Men

Quick Detail:

Name: Sildenafil citrate
trade name: viagra
CAS Number: 171599-83-0

content:99.5% Sildenafil citrate
Solubility: Slightly soluble in water, methanol; very slightly soluble in ethanol,
Appearance: White crystalline powder
Packing: as your require
Storage: shading, confined preservation.


Sildenafil citrate is the raw material of Viagra, viagra treats erectile dys function and works by relaxing muscles and increases blood flow to particular areas of the body (in this case, the penis, specifically). Its effects last up to four hours. The most common side effects of Viagra are headache, facial flushing, and upset stomach. Rarely, blurred vision, or sensitivity to light may briefly occur.

As well as treating impotence, Sildenafil Citrate can also be effective in treating Pulmonary Arterial Hypertension (PAH). Similarly to how it acts to relax muscles of the penis, it relaxes arterial walls; therefore, reducing resistance and pressure in the arteries.

Sildenafil Citrate is solely active in relaxing muscles and increasing blood flow to the heart, lungs and penis due to PDE-5, yet vasodilation is not increased in other parts of the body.


Sildenafil citrate, sold as Viagra, Revatio and under various other trade names, is a drug used to treat erectile dysfunction and pulmonary arterial hypertension (PAH).

used in the treatment of penile erectile dysfunction (ED).

The primary indication of sildenafil is treatment of erectile dysfunction (inability to sustain a satisfactory erection to complete intercourse). Its use is now standard treatment for erectile dysfunction in all settings, including diabetes.

People on antidepressants may experience sexual dysfunction, either as a result of their illness or as a result of their treatment. A 2003 study showed that sildenafil improved sexual function in men in this situation. Following up reports from 1999, the same researchers found that sildenafil improved sexual function in female patients on antidepressants as well.

Sildenafil Dosage

Viagra:for erectile dysfunction, comes in blue, diamond-shaped pills, in doses of 25, 50, or 100 milligrams. The patient takes a maximum of one pill in a 24-hour period, between 30 minutes to 1 hour before sexual intercourse.

Revatio:for pulmonary arterial hypertension, comes in white, round, film-coated tablets. Patients take one 20 mg Revatio tablet three times a day.


DescriptionWhite crystalline powderWhite crystalline powder
SolubilitySouble in dimethylformamide,sparingly soluble in acetic acid and slightly soluble in methanol.Conforms

Identification by A) IR
B)Test for citrates

The absorption maxima in the spectrum obtained with sample corresponds in position relative intensity to those in the spectrum obtained with sildenafil citrate CRS/working standard or with reference spectrum of sildenafil citrate.
To complies as per I.P

Melting RangeBetween 182 ℃ to 196 ℃188 ℃-192
Water by KFRNMT2.0%1.32%w/w
Citric acid content28.0 to 34.0% w/w29.14w/w
Loss on drying at 105 ℃NMT 1.0% w/w0.64%w/w
Heavy metalsNMT 20 ppmConforms
Sulphated ashNMT 0.10% w/wConforms
Related substance by HPLC

N-Oxide impurity NMT 0.50%
Chloro sulphonyl impurity NMT 0.20%
Any other impurity NMT 0.30%
Total impurities NMT 1.5%

Not detected
Not detected



The effects of Viagra are once again simple: the individual does not have the ability to produce or maintain an erection and Viagra provides the ability.

Side effects:

Headache, heartburn, Dizziness


Usual Adult Dose for Erectile Dysfunction:

Initial dose: 50 mg orally once a day, as needed, 1 hour prior to sexual activity
Maintenance: 25 to 100 mg orally once a day, as needed, 1 hour prior to sexual activity
Comments: This drug may be taken anywhere from 30 minutes to 4 hours before sexual activity.
Use: Treatment of erectile dysfunction

Usual Geriatric Dose for Erectile Dysfunction:

Initial dose: 25 mg orally once a day 1 hour prior to sexual activity
Use: Treatment of erectile dysfunction

Our advantages:

1.Our company is a professional production leading factory in China in pharmaceutical area of many years,our products have exported to Germany, Spain, UK, USA, Australia, Middle East, and so on other country, and we have got very good feedback from our customers, we had Established long friendly relations of cooperation.

2.Great quality, purity and favourable.

Good quality is one of our secret success, welcome order the samples, MOQ just 10 grams.

3.Safe and fast delivery.

We have stock, so we can delivery quickly at the very day when receive the payment. We have special way could ship 0.01kg to 3.5kg products a time. We offer melting powder into liquid service.And ship the liquid in special bottles.

4.good after-sales service.

Tell the package update asap, and will try best solve when customer encountered various problems.

5.We have stock, so we can fast delivery.

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