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Tadalafil

METABOLIC · RESEARCH COMPOUND

Tadalafil

Each bottle contains 100 pills. Tadalafil is a long-acting PDE5 (phosphodiesterase type 5) inhibitor — the active compound in Cialis.

4.6 · 400 reviews

$89.99

Each bottle contains 100 pills.

Tadalafil is a long-acting PDE5 (phosphodiesterase type 5) inhibitor — the active compound in Cialis. Studied extensively in cardiovascular and smooth muscle research involving vasodilation, pulmonary arterial pressure regulation, and erectile function models. Supplied as 100 × 20mg tablets at $0.90/tablet. For research use only.

In stock

20 MG
Purchase & earn 270 points!
Quantity Price
1 $89.99
2 $73.75
3+ $69.35
Third-party lab tested Same day shipping COA available Free Priority $200+
Order within 4h 46m to ship today · Arrives Oct 17 – Oct 19
≥99%HPLC PURITY
Purity (HPLC)
Identity confirmed
Independently tested
Third-party lab · tested before shippingVIEW LAB REPORT →
Independently lab tested · Batch NXT-TAD20-2610 · 22.50 mg per tablet verified
SKU: TADALAFIL-20MG Categories: ,

Why researchers choose this

Built for serious research.

Every batch independently third-party lab tested. Lyophilized and sealed. Same day shipping from our US facility on orders placed by 2 PM ET.

≥99% HPLC purity

Every batch verified by an independent third-party lab. COA available on request and in the product gallery.

Lyophilized powder

Stable, shelf-ready powder. Sealed vial, stored dry and away from light.

Same day shipping

Order by 2 PM ET and it ships today. Cold-chain packaging on every order. Tracking provided on dispatch.

COA per batch

Certificate of Analysis for every lot. Identity, purity, and quality data — included in the product gallery.

About this compound

More on Tadalafil.

Tadalafil is a selective phosphodiesterase type 5 (PDE5) inhibitor widely studied in laboratory and preclinical research involving cyclic guanosine monophosphate (cGMP) signaling, vascular biology, smooth muscle physiology, and endothelial function. Its well-characterized pharmacological profile and prolonged activity make it a useful reference compound for investigating PDE5-mediated pathways.

NXTSTATE provides Tadalafil as a research-grade compound with analytical testing for identity and purity. Each batch is accompanied by a Certificate of Analysis (COA) documenting relevant quality-control results.

Research Applications

Tadalafil is primarily investigated for its ability to inhibit PDE5, an enzyme responsible for the breakdown of cGMP. By modulating PDE5 activity, researchers can examine downstream cGMP signaling and associated changes in smooth-muscle and vascular responses.

Preclinical research has investigated tadalafil in models involving pulmonary vascular signaling, lower urinary tract physiology, endothelial function, cardiovascular biology, and smooth-muscle regulation. Additional laboratory studies have examined its potential relevance to neurological and metabolic pathways.

Its relatively long pharmacokinetic half-life compared with several other PDE5 inhibitors has also made tadalafil useful in pharmacology and comparative drug-research models.

Mechanism of Action

PDE5 regulates intracellular cGMP by catalyzing its degradation. Tadalafil selectively inhibits this enzyme, allowing researchers to investigate how altered cGMP availability influences cellular signaling.

This mechanism makes the compound particularly relevant to studies of:

  • PDE5 and cGMP signaling
  • Vascular smooth-muscle biology
  • Endothelial function
  • Pulmonary vascular pathways
  • Cardiovascular signaling
  • Pharmacokinetic and pharmacodynamic models

Product Specifications

  • Compound: Tadalafil
  • Molecular Formula: C22H19N3O4
  • Molecular Weight: Approximately 389.40 g/mol
  • CAS Number: 171596-29-5
  • Purity: ≥98% HPLC verified
  • Form: Research-grade powder
  • Appearance: White to off-white solid
  • Storage: Store in a tightly sealed container under controlled conditions, protected from moisture and direct light.

Quality & Analytical Verification

Each NXTSTATE batch undergoes analytical quality control appropriate for research applications. Testing may include HPLC for purity assessment and mass spectrometry for molecular identity confirmation. Batch-specific documentation is provided through the accompanying Certificate of Analysis.

This documentation allows researchers to review the analytical characteristics of the specific material supplied for their experiments.

Laboratory Handling

Tadalafil should be handled in accordance with appropriate laboratory safety procedures and institutional protocols. For in-vitro research, researchers should select a solvent system compatible with the experimental model and prepare working concentrations according to validated laboratory methods.

Appropriate personal protective equipment and controlled laboratory handling procedures should be used when working with research chemicals.

Research Use Only

This product is supplied exclusively for laboratory and research applications. It is not intended for human consumption, self-administration, therapeutic use, diagnosis, or veterinary use.

Researchers and institutions are responsible for ensuring that storage, handling, experimentation, and disposal comply with applicable regulations and institutional requirements.

Frequently asked

Common questions, answered.

Is this for human consumption?

No. All NXTSTATE products are sold strictly for laboratory research use only. They are not intended for human consumption, ingestion, or in vivo administration.

How is purity verified?

Every batch is independently tested by a third-party lab. The Certificate of Analysis confirms identity and ≥99% HPLC purity, and is included in the product gallery for every order.

How fast does it ship?

Orders placed before 2pm ET ship same-day. Most orders arrive in 24–48 hours within the US via expedited carrier. Tracking is sent on dispatch.

How should it be stored?

Lyophilized peptide should be stored sealed at room temperature, away from light and moisture.

What payment methods do you accept?

Visa, Mastercard, Zelle, Cash App, and Venmo. Card processing handled securely via our processor. Off-platform options (Zelle/CashApp/Venmo) available at checkout.

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