Pharmaceutical-grade peptides & lab-use compounds available online.
Free US shipping for orders above $600
Skip to content Pharmaceutical-grade peptides & lab-use compounds available online.
Free US shipping for orders above $600
This product is intended solely for use as a research chemical in vitro and laboratory experimentation by licensed, qualified professionals.
Sildenafil powder is the active pharmaceutical ingredient (API) form of sildenafil citrate, a potent phosphodiesterase type 5 (PDE5) inhibitor primarily used to treat erectile dysfunction (ED) and pulmonary arterial hypertension (PAH).
| Specifications | Price |
|---|---|
| 100g | $80.00 |
| 500g | $350.00 |
| 1000g | $650.00 |
HPLS
Testing
Endotoxin
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TYMC
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TYMC
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Heavy Metal
Screening
| Property | Details |
|---|---|
| Molecular Formula | C22H30N6O4S |
| Molecular Weight | 474.58 g/mol |
| CAS Number | 139755-83-2 |
| Appearance | White to off-white Powder |
| Form | Temperature | Stability |
|---|---|---|
| Powder | -20°C | 3 years |
| Powder | 4°C | 2 years |
| In Solvent | -80°C | 1 year |
| In Solvent | -20°C | 6 months |
Sildenafil works by inhibiting the PDE5 enzyme, which is responsible for breaking down cyclic guanosine monophosphate (cGMP). By blocking PDE5, sildenafil increases cGMP levels, leading to smooth muscle relaxation and vasodilation in the corpus cavernosum of the penis, which helps achieve and maintain an erection during sexual stimulation.
Erectile Dysfunction (ED)
Sildenafil powder is formulated into tablets (e.g., Viagra) to treat ED by increasing blood flow to the penis.
Pulmonary Arterial Hypertension (PAH)
Used under the brand name Revatio to improve exercise capacity and delay clinical worsening in patients with PAH.
Benign Prostatic Hyperplasia (BPH)
May help relieve urinary symptoms by relaxing smooth muscles in the prostate and bladder.
Common side effects: Headaches, heartburn, and flushed skin.
Caution: Advised for those with cardiovascular disease.
Rare but serious side effects: Vision problems, hearing loss, and prolonged erection (priapism) that can lead to damage to the penis.
Contraindication: Sildenafil should not be taken by people on nitric oxide donors such as nitroglycerin, as this may result in a serious drop in blood pressure.
All product is sold solely for scientific research purposes. Researchers are responsible for ensuring compliance with local regulations and institutional guidelines. Keep out of reach of children and unauthorized personnel.
1688pharmacy is more than just a trusted supplier of research peptides. We are committed to scientific advancement, dedicated to providing the highest quality pharmaceutical-grade compounds that empower researchers and clients to achieve their goals.
Our proprietary processes and meticulous sourcing of premium materials ensure that every peptide we offer meets the most stringent pharmaceutical standards with verified 99% purity.
Every peptide undergoes rigorous third-party laboratory testing using advanced techniques like HPLC, LC-MS, and NMR. Complete Certificates of Analysis available for transparency and verification.
We provide expedited worldwide shipping with reliable tracking and discreet packaging. Our dedicated customer support team assists with orders, storage guidelines, and product inquiries promptly.