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Tadalafil

METABOLIC RESEARCH · RESEARCH COMPOUND

Tadalafil

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

4.6 · 400 reviews

$49.99

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 × 5mg tablets at $0.50/tablet. For research use only.

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SKU: TADALAFIL-5MG Categories: ,

Why researchers choose this

Built for serious research.

Every batch independently third-party lab tested. Pharma-grade lyophilization. Shipped from our US facility within 24–48 hours.

≥99% HPLC purity

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

Pharma-grade lyophilization

Stable, shelf-ready powder. Reconstitute with bacteriostatic water for research use.

Ships in 24–48 hours

From our US facility. 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.

Product Overview

Tadalafil is a phosphodiesterase type 5 (PDE5) inhibitor compound widely recognized in clinical and preclinical research for its role in modulating cyclic guanosine monophosphate (cGMP) signaling pathways. Originally developed as a therapeutic agent for vascular-related conditions, Tadalafil has become one of the most extensively studied PDE5 inhibitors due to its prolonged half-life and selective pharmacological profile. Researchers investigating vascular biology, smooth muscle physiology, and endothelial function frequently utilize Tadalafil as a reference compound in controlled laboratory settings.

NXTSTATE supplies Tadalafil in research-grade form, verified by independent third-party HPLC and mass spectrometry analysis. Each unit ships with a Certificate of Analysis documenting purity, identity, and batch-specific quality metrics.

Research Background

Tadalafil functions by selectively inhibiting PDE5, an enzyme responsible for the degradation of cGMP in smooth muscle cells. By preventing cGMP breakdown, Tadalafil promotes sustained smooth muscle relaxation and increased blood flow in tissues where PDE5 is predominantly expressed. The compound exhibits a notably longer duration of action compared to other PDE5 inhibitors, with a pharmacokinetic half-life of approximately 17.5 hours in clinical studies.

Preclinical research has explored Tadalafil across numerous therapeutic contexts including pulmonary arterial hypertension, lower urinary tract symptoms, Raynaud phenomenon, and benign prostatic hyperplasia. Emerging research has also investigated potential applications in neuroprotection, cardiac remodeling, and exercise physiology. Its selectivity for PDE5 over other phosphodiesterase isoforms makes it a valuable tool for studying cGMP-specific signaling pathways without significant cross-reactivity.

Product Specifications

Molecular Formula: C22H19N3O4 | Molecular Weight: 389.40 g/mol | CAS Number: 171596-29-5 | Purity: Minimum 98% verified by HPLC | Form: Lyophilized powder | Storage: Store at controlled room temperature (20-25 degrees Celsius) in a dry environment away from direct light. Keep container tightly sealed when not in use.

Quality Assurance

Every batch of Tadalafil from NXTSTATE undergoes rigorous quality control testing through independent analytical laboratories. Testing protocols include reverse-phase HPLC for purity determination, mass spectrometry for molecular identity confirmation, and endotoxin screening for research safety. Our Certificate of Analysis provides complete transparency into batch-specific testing results, ensuring researchers can trust the consistency and reliability of every order. NXTSTATE maintains strict Good Manufacturing Practice-aligned processes throughout sourcing, handling, and distribution.

Reconstitution and Handling

Tadalafil is supplied as a lyophilized powder suitable for reconstitution in appropriate research-grade solvents. Dimethyl sulfoxide (DMSO) is commonly used for stock solution preparation at concentrations suitable for in vitro applications. Researchers should prepare fresh working dilutions as needed and avoid repeated freeze-thaw cycles. All handling should follow standard laboratory safety protocols including the use of personal protective equipment. This product is intended exclusively for in vitro and preclinical research applications.

Compliance and Disclaimers

This product is sold strictly for research use only. It is not intended for human consumption, therapeutic use, or diagnostic purposes. NXTSTATE products are manufactured and distributed in compliance with all applicable regulations governing research chemicals. Purchasers assume full responsibility for ensuring that all research conducted with this product complies with applicable institutional, local, and federal guidelines. NXTSTATE does not make any claims regarding therapeutic efficacy or safety for human or veterinary use.

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. Once reconstituted with bacteriostatic water, refrigerate and use within 30 days.

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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