Tadalafil 1KG Raw Powder | PDE5 Inhibitor Research

Tadalafil 1KG Raw Powder | Tadalafil

QSC Tadalafil (long-acting PDE5 inhibitor, T½ ~17.5h, high PDE5/PDE6 selectivity) — 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 (🇨🇳)

$1,000

QSC RESEARCH GRADE

≥99% HPLC PurityMS ConfirmedJanoshik COAIn-House SPPSChina Warehouse

What is Tadalafil?

Tadalafil is a long-acting, highly selective PDE5 inhibitor with a T½ of approximately 17.5 hours — markedly longer than sildenafil (~4h). High PDE5/PDE6 selectivity ratio minimises visual side effects. Research tool for PDE5 pharmacology, BPH research (PDE5 expression in prostate), erectile physiology, and long-duration cGMP studies. Research use only.

Research Applications

Long-Acting PDE5 Inhibition

T½ ~17.5h — sustained cGMP elevation, steady-state receptor occupancy modelling

High PDE5/PDE6 Selectivity

Minimal PDE6 cross-reactivity vs sildenafil — visual safety mechanism research

BPH & Prostate Research

PDE5 expression in prostate smooth muscle — urinary tract and erectile function

Erectile & Vascular Physiology

Long-duration NO-cGMP pathway amplification, corpus cavernosum biology

Comparative PDE5 Inhibitor Studies

Tadalafil vs sildenafil vs vardenafil — potency, selectivity, duration ladder

Quick Specs

Form	Raw bulk powder (crystalline/amorphous)
Purity	≥99% by HPLC — every batch
CAS Number	171596-29-5
Molecular Formula	C22H19N3O4, MW 389.4
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