Sildenafil Citrate 1KG Raw Powder | PDE5 Inhibitor

Sildenafil Citrate 1KG Raw Powder | Sildenafil

QSC Sildenafil Citrate (PDE5 inhibitor, cGMP pathway, erectile & pulmonary vascular research) — 1KG bulk raw powder. ≥99% HPLC purity, MS confirmed, Janoshik COA. Research use only.

✓ 99%+ Purity	✓ COA Available
✓ Free Shipping on All Orders	✓ Ships from China (🇨🇳)

$550

QSC RESEARCH GRADE

≥99% HPLC PurityMS ConfirmedJanoshik COAIn-House SPPSChina Warehouse

What is Sildenafil?

Sildenafil Citrate is a potent, selective PDE5 (phosphodiesterase type 5) inhibitor. Blocks cGMP degradation, elevating intracellular cGMP and mediating smooth muscle relaxation via PKG activation. Standard PDE5 inhibitor reference compound for vascular biology, erectile physiology, pulmonary hypertension, and cGMP pathway research. Research use only.

Research Applications

PDE5 Inhibition Pharmacology

IC50, selectivity panel (PDE1–11), cGMP elevation kinetics — reference compound

Erectile Physiology Research

Corpus cavernosum smooth muscle relaxation, haemodynamic models, NO-cGMP amplification

Pulmonary Hypertension

Pulmonary vascular resistance, PDE5 expression in lung, vasorelaxation studies

Endothelial Function

NO pathway amplification, endothelial cGMP signalling, vascular tone modulation

PDE6 Cross-Reactivity

Sildenafil PDE6 inhibition — visual side effect mechanism, retinal photoreceptor research

Quick Specs

Form	Raw bulk powder (crystalline/amorphous)
Purity	≥99% by HPLC — every batch
CAS Number	171599-83-0
Molecular Formula	C28H38N6O11S, MW 666.7
Identity	MS molecular weight confirmed — every batch
Compound Type	PDE5 Inhibitor
COA	Janoshik-independent, publicly verifiable
Manufacture	In-house synthesis — Qingdao, China
Storage	Room temperature sealed \| cool, dry storage
Shelf Life	24 months (unopened)

Certificate of Analysis (COA)

For the latest Certificate of Analysis (COA), please email us with your request.

Frequently Asked Questions

How is this raw powder supplied?

QSC raw powder compounds are supplied as bulk crystalline or amorphous powder in a sealed, labelled container at the stated quantity. No reconstitution is required — the powder is ready for weighing and use in research applications.

How should this raw powder be stored?

Store at room temperature (15–25°C) in a cool, dry place away from moisture, heat, and direct light. Keep in the original sealed container. Properly stored raw powder remains stable for 2–3 years.

What purity is this QSC raw powder and how is it verified?

All QSC raw powder compounds are tested to ≥99% purity by HPLC on every production batch, with MS-confirmed identity. COA is published on the product page and independently verifiable at verify.janoshik.com.

🧪 Peptide Research Tools: Use QSC’s free peptide calculators — reconstitution, BAC water, dosing, half-life, and mixing charts.

🌏 Shipping: China warehouse — 7–14 day global delivery