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  • 🇺🇸 USA Domestic
  • Warehouses
    • 🇪🇺 EU Domestic
    • 🇬🇧 UK Domestic
    • 🇦🇺 AU Domestic
    • 🇨🇦 CA Domestic
    • 🇨🇳 CH International
  • Compounds
    • Categories
      • Anti-Aging & Longevity
      • Cognitive & Nootropic
      • Cosmetics
      • Performance & Hormone Optimization
      • Recovery & Healing
      • Weight Loss & Metabolic
    • Peptides
      • Peptide Blends
    • Tablets
    • Injectables
    • Raws
  • Track Order
  • Contact
    • About QSC
      • QSC Price List
      • QSC Reviews
      • QSC FAQ
      • Privacy Policy
      • Return, Refund & Shipping Policy
      • Terms and Conditions
Login / Register
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FREE standard shipping on all orders.
≥99% Purity Verified • COA on Every Product
Free Shipping on All Orders • USPS/FedEx in USA 🇺🇸
Domestic Warehouses: 🇺🇸 🇪🇺 🇬🇧 🇨🇦 🇦🇺 🇸🇬 🇹🇭 🇻🇳

Vardenafil 100G Raw Powder | High-Affinity PDE5 Inhibitor

QSC Vardenafil (PDE5 Inhibitor (Potent)) — ≥99% HPLC purity, MS confirmed, Janoshik COA. 100G bulk. Research use only.

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

$600

or
SKU: QSC-0204-VARDENAFIL-100G-RAWPOWDER
Categories: Performance & Hormone Optimization, Raws
Brand: QSC
Technical Specs & COA

QSC RESEARCH GRADE

≥99% HPLC PurityMS ConfirmedJanoshik COAIn-House SynthesisChina Warehouse

What is Vardenafil?

Vardenafil is a potent, selective PDE5 inhibitor with higher PDE5 affinity and greater selectivity over PDE6 than sildenafil, providing potentially fewer visual side effects. Studied for PDE5 pharmacology, erectile physiology, cGMP pathway research, and comparative PDE5 inhibitor pharmacology. Research use only.

Research Applications

PDE5 Inhibition Pharmacology

High-affinity PDE5 inhibition — IC50, selectivity profile, cGMP elevation

Comparative PDE5 Research

Vardenafil vs sildenafil vs tadalafil — selectivity, potency, PDE6 cross-reactivity

Erectile Physiology

Corpus cavernosum smooth muscle cGMP, NO pathway amplification

PDE6 Selectivity Research

Retinal PDE6 selectivity — visual side effect mechanism vs sildenafil comparison

Cardiovascular cGMP

Vascular smooth muscle relaxation, pulmonary hypertension, endothelial function

Quick Specs

Form Raw bulk powder (crystalline/amorphous)
Purity ≥99% by HPLC — every batch
CAS Number 224785-90-4
Molecular Formula C₂₃H₃₂N₆O₄S, MW 488.6
Identity MS molecular weight confirmed — every batch
Compound Type PDE5 Inhibitor (Potent)
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
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