Sildenafil CAS 139755-83-2

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Sildenafil treats erectile dysfunction by increasing blood flow to the penis during sexual stimulation. This increased blood flow can cause an erection. Sildenafil treats PAH by relaxing the blood vessels in the lungs to allow blood to flow easily.

Sildenafil is the active ingredient in Viagra. Viagra was developed by the pharmaceutical company Pfizer and they were the only company that could legally manufacture it until 2013. In 2013, their patent expired which meant that other companies could produce their own erectile dysfunction medications containing the active ingredient sildenafil. When you see the medication ‘Sildenafil’, you can be assured that it contains exactly the same active ingredient as Viagra. However, as it is a generic version rather than the brand, it is considerably cheaper.

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Sildenafil CAS 139755-83-2

Sildenafil CAS 139755-83-2 product information:

Product Name: Sildenafil
Synonyms: SILDENAFIL;5-[2-ethoxy-5-(4-methylpiperazin-1-yl-sulphonyl)phenyl]-1-methyl-3-n-propyl-1,6-dihydro-7h-pyrazol[4,3d]pyrimidin-7-one;7H-Pyrazolo[4,3-d]pyriMidin-7-one, 5-[2-ethoxy-5-[(4-Methyl -1-piperazinyl)sulfonyl]phenyl]-1,6-dihydro-1-Methyl-3-propyl-;Sildenafil solution
CAS NO: 139755-83-2
EINECS: 604-158-7
Molecular Formula: C22H30N6O4S
Molecular Weight: 474.58
Melting Point: 187-189°C
Boiling Point:
Density: 1.39±0.1 g/cm3(Predicted)
Appearance: White to off-white Powder
Storage: Sealed in dry,Store in freezer, under -20°C
Solubility: DMSO (Slightly), Methanol (Slightly)
Applications: Sildenafil is a phosphodiesterase 5 (PDE5) inhibitor. It is indicated for the treatment of erectile dysfunction (ED). Sildenafil is an orally active selective cGMP type 5 phosphodiesterase inhibitor.

Sildenafil vs. Viagra: what’s the difference?

The bottom line is, both Viagra and sildenafil contain the same active ingredient: sildenafil citrate. So, they both will have the same effect on your body.

Sildenafil citrate is a phosphodiesterase type 5 (PDE5) inhibitor – a class of drugs that encourage blood vessels to relax, allowing for an influx of blood which causes an erection.

As the generic form of Viagra, you can expect sildenafil to cost less. With a more competitive price on the market, men suffering from ED have more options, making it easier to treat erectile dysfunction and enjoy a healthy sex life.

Sildenafil vs Taladalfil – which is better?

Sildenafil and Tadalafil are the most well-known of all the ED medications. They are both in a class of medications called ‘phosphodiesterase type 5 (PDE5) inhibitors’ and work in a very similar way.

Sildenafil has been around since 1998, which means a lot is known about the positive effects and also the side effects. It works within an hour of taking the medication and for its full effect, should be taken on an empty stomach. The effects of Sildenafil generally last for four to five hours.

Sildenafil is the active ingredient in Viagra. Viagra was developed by the pharmaceutical company Pfizer and they were the only company that could legally manufacture it until 2013. In 2013, their patent expired which meant that other companies could produce their own erectile dysfunction medications containing the active ingredient sildenafil. When you see the medication ‘Sildenafil’, you can be assured that it contains exactly the same active ingredient as Viagra. However, as it is a generic version rather than the brand, it is considerably cheaper.

In 2003, a company named Eli Lilly introduced Cialis as an alternative ED medication. Cialis has the active ingredient ‘Tadalafil’. The company had the patent on Tadalafil until November 2017. Similarly to Viagra, now that the patent has expired, other companies are permitted to make their own version of Tadalafil, the active ingredient in Cialis. Again, as it is a generic version of the brand, Cialis, the medication is considerably cheaper.

One of the disadvantages of Tadalafil is that as the medication lasts in the body for longer, if you get side effects with the medication, these can last longer as well.

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