Buy Sildenafil in USA | ≥99% Purity | QSC Peptides
Buy Sildenafil (Viagra analog) in USA
Ships from our US Domestic Warehouse — 2–4 business days. No customs clearance required.
≥99%
Verified Purity
2
Days to USA
COA
On Every Order
Why Researchers in USA Order Sildenafil (Viagra analog) from QSC
QSC maintains a dedicated US Domestic Warehouse — your order ships with full tracking, no import delays and no customs fees. Every unit of Sildenafil (Viagra analog) (PDE5 Inhibitor) is verified at ≥99% purity by HPLC and mass spectrometry, and ships with a Certificate of Analysis independently verifiable via the Janoshik portal. Typical delivery to USA: 2–4 business days.
Shipping Details for USA
Warehouse
US Domestic Warehouse
Delivery Time
2–4 business days
Customs
No customs clearance required.
Tracking
Full tracking provided via email after dispatch
Payment
Bitcoin (BTC) or USDT ERC-20
Sildenafil (Viagra analog): Research Background
Class: PDE5 Inhibitor
Mechanism: Sildenafil is the original PDE5 inhibitor — selectively blocks PDE5 in corpus cavernosum and pulmonary vascular smooth muscle, preventing cGMP breakdown and sustaining NO-mediated vasodilation. Half-life ~4 hours.
Research Applications: PDE5 cGMP pathway research, penile smooth muscle biology, pulmonary hypertension models, NO signalling research.
Quality Verification
Every QSC Sildenafil (Viagra analog) batch undergoes: HPLC purity analysis (≥99% specification) · Mass spectrometry molecular verification · Impurity profiling · Batch traceability to published COA.
Researchers studying Sildenafil (Viagra analog) frequently also investigate: Tadalafil, Vardenafil, PT-141. View the full QSC catalog →
Frequently Asked Questions
Is Sildenafil (Viagra analog) legal to buy in USA?
Sildenafil (Viagra analog) is sold strictly for laboratory research purposes only. Researchers in USA are responsible for understanding applicable local regulations.
How long does shipping to USA take?
Orders ship from the US Domestic Warehouse. Typical delivery to USA: 2–4 business days. No customs clearance required.
How is Sildenafil (Viagra analog) purity verified?
HPLC purity analysis, mass spectrometry molecular verification, and impurity profiling on every batch. COA published on product page, verifiable via Janoshik portal.
What formats of Sildenafil (Viagra analog) are available?
QSC stocks Sildenafil (Viagra analog) in Tablets format. View current options and pricing via the button below.
