Mirodenafil (SK-3530) Overview
Mirodenafil (SK-3530) is a synthetic, selective phosphodiesterase-5 (PDE5) inhibitor. It functions by inhibiting the PDE5 enzyme, which is responsible for the degradation of cyclic guanosine monophosphate (cGMP) in smooth muscle tissue. By preventing this degradation, mirodenafil facilitates the accumulation of cGMP, thereby promoting nitric oxide–mediated vasodilation. It is primarily used in laboratory research to investigate NO-cGMP signaling cascades, vascular smooth muscle physiology, and comparative PDE5 pharmacology.
Technical Specifications
| Property | Specification |
| Product Name | Mirodenafil (SK-3530) |
| CAS Number | 862189-95-5 |
| Chemical Formula | C26H37N5O5S |
| Molecular Weight | 531.67 g/mol |
| Chemical Class | Pyrrolopyrimidinone derivative |
| Appearance | White to off-white powder |
| Assay Purity | ≥98% (HPLC verified) |
Mechanism of Action & Research Utility
As a selective PDE5 inhibitor, mirodenafil is utilized to study the regulation of vascular smooth muscle tone and endothelial function.
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Enzymatic Inhibition: Competitively binds to the PDE5 catalytic site, preventing the hydrolysis of cGMP to 5′-GMP.
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Signaling Modulation: Enhances nitric oxide (NO) signaling pathways, which are critical for vascular relaxation.
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Pharmacological Profiling: Serves as a reference compound in studies comparing the potency, selectivity, and structure-activity relationships (SAR) of various PDE5 inhibitors.
Research Applications
Mirodenafil is a specialized tool used for examining vascular biology and cyclic nucleotide signaling in laboratory models.
Primary fields of in vitro and ex vivo laboratory investigation include:
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PDE5 Inhibition Studies: Mapping enzyme kinetics and structural binding profiles.
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Vascular Biology: Researching the relaxation mechanisms of vascular smooth muscle and endothelial pathways.
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Comparative Pharmacology: Evaluating the efficacy of different heterocyclic scaffolds in inhibiting PDE5 relative to other inhibitors (e.g., sildenafil, vardenafil).
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Signaling Pathways: Investigating NO-cGMP cross-talk in isolated tissue or cell-based models.
Storage & Handling Guidelines
To maintain the chemical stability and integrity of the compound:
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Long-Term Storage: Store in a cool, dry, and dark environment, preferably at -20 °C for extended stability.
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Light Protection: Protect from direct light exposure to prevent degradation.
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Vial Integrity: Keep the container tightly sealed after each use to prevent moisture and atmospheric exposure.
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Handling: Utilize sterile laboratory techniques and appropriate Personal Protective Equipment (PPE) when preparing stock solutions.
Research Use Disclaimer
Research Use Only Disclaimer: This product is developed and distributed strictly as a Research Use Only (RUO) laboratory reference chemical intended exclusively for non-clinical analytical and scientific investigation. It is not an FDA-approved drug, medical treatment, or dietary supplement, and is strictly prohibited for human or animal consumption. Kimera Chems supplies this reagent solely to qualified scientific institutions and investigators for authorized laboratory research purposes.
| CAS Number | 862189-95-5 |
| Other Names | Mirodenafil Dihydrochloride |
| IUPAC Name | 5-ethyl-2-[5-[4-(2-hydroxyethyl)piperazin-1-yl]sulfonyl-2-propoxyphenyl]-7-propyl-3H-pyrrolo[3,2-d]pyrimidin-4-one |
| Molecular Formula | C₂₆H₃₇N₅O₅S |
| Molecular Weight | 531,666 g/mol |
| Liquid Concentration And Solution | 50mg/ml (DMSO, PEG400) |





