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| Synonyms: | Sildenafil Citrate; Viagra | Purity: | 98% |
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| Melting Point: | 187-189°C | Molecular Formula: | Molecular Formula |
| Presentation: | White Solid | Usage: | Enzyme Inhibitor |
| Brand: | NJBNsteroid | Skype: | Bnsteroid |
| High Light: | human steroid hormones,natural steroid hormones |
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Viagra Sildenafil Citrate Sex Steroid Hormones CAS 171599-83-0 Oral Anti Estrogen Steroid
Fast facts on Viagra
Viagra was initially designed for hypertension and angina pectoris.
Viagra's main competitors are Cialis (tadalafil) and Levitra (vardenafil).
Side effects include headaches, hearing loss, impaired vision, increased intraocular pressure and dyspepsia.
Viagra pills are blue and diamond-shaped.
Individuals with kidney disease should not take Viagra.
Some athletes take Revatio in the belief that it enhances their performance.
Viagra works by inhibiting the enzyme cGMP-specific phosphodiesterase type 5.
Viagra was designed by Pfizer in Kent, England.
Some people use Viagra recreationally, although it is not thought to have any benefit in people without penile dysfunction.
What is Viagra?
Viagra is the brand name forsildenafil citrate, and is used for treating erectile dysfunction and pulmonary arterial hypertension. Originally developed by scientists in Great Britain, it was brought onto the market by Pfizer Inc., a US pharmaceutical company. Viagra is also sold under brand nameRevatio.
Viagra was initially designed to help lower blood pressure but is now typically used to treat erectile dysfunction.
Quick Details
| Product name | Sildenafil Citrate |
| Synonyms | Sildenafil citrate,viagra |
| Category | Sex Steroid Hormones |
| CAS NO | 171599-83-0 |
| Appearance | White Solid |
| Assay | 98% |
| Molecular formula | C28H38N6O11S |
| Molecular weight | 666.7 |
| Molecular structure |
 |
| Delivery time | Within 24 hours upon receipt of payment |
| Delivery | EMS, DHL, TNT, FedEx, UPS |
| Usage | An orally active selective type 5 cGMP phosphodiesterase inhibitor Biological Activity :Orally active, potent inhibitor of phosphodiesterase 5 (PDE5) (IC 50 = 4 nM). Enhances nitric oxide-dependent relaxation of human corpus cavernosum in vitro. |
| Brand | NJBNsteroid |
| Manufacturer | NJBN STEROIDS |
| Skype | bnsteroid |
| annahuang@chembj.com | |
| What's App | +8617327094661 |
Applications
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). It was originally discovered by Pfizer scientists Andrew Bell, David Brown, and Nicholas Terrett.
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.
In clinical trials, the most common adverse effects of sildenafil use included headache, flushing, dyspepsia, nasal congestion and impaired vision, including photophobia and blurred vision.Some sildenafil users have complained of seeing everything tinted blue (cyanopsia).Some complained of blurriness and loss of peripheral vision. In July 2005, the FDA found that sildenafil could lead to vision impairment in rare cases and a number of studies have linked sildenafil use with nonarteritic anterior ischemic optic neuropathy.
Rare but serious adverse effects found through postmarketing surveillance include priapism, severe hypotension, myocardial infarction (heart attack), ventricular arrhythmias, stroke, increased intraocular pressure, and sudden hearing loss. As a result of these postmarketing reports, in October 2007, the FDA announced that the labeling for all PDE5 inhibitors, including sildenafil, required a more prominent warning of the potential risk of sudden hearing loss.
Certificate Of Analysis
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Product name |
Sildenafil Citrate |
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Appearance |
White crystalline powder |
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Loss on drying |
≤1.0% |
0.3% |
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Acidity |
3.0-5.0 |
4.1 |
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Residue on ignition |
≤0.1% |
0.05% |
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Heavy metals |
≤20ppm |
Complies |
|
Relevant impurity |
≤0.5% |
0.02% |
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Methanol |
≤0.3% |
0.025% |
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Methylene dichloride |
≤0.06% |
0.013% |
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N,N-Dimethyl formamide |
≤0.088% |
Not detected |
|
Assay(on dried basis) |
≥98% |
98.4% |
HPLC
Name: Anna Huang
skype: bnsteroid
what'sApp:+8617327094661
skype: bnsteroid
Email: annahuang@chembj.com
