1. Metabolic Enzyme/Protease
  2. Phosphodiesterase (PDE) Endogenous Metabolite
  3. Vardenafil hydrochloride

Vardenafil hydrochloride is a selective and orally active inhibitor of phosphodiesterase-5 (PDE5), with an IC50 of 0.7 nM. Vardenafil hydrochloride shows inhibitory towards PDE1, PDE6 with IC50s of 180 nM, and 11 nM, while IC50s are >1000 nM for PDE3 and PDE4. Vardenafil hydrochloride competitively inhibits cyclic guanosine monophosphate (cGMP) hydrolysis and thus increases cGMP levels. Vardenafil hydrochloride can be used for the research of erectile dysfunction, hepatitis, diabetes[1]-[6].

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Vardenafil hydrochloride Chemical Structure

Vardenafil hydrochloride Chemical Structure

CAS No. : 224785-91-5

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Based on 2 publication(s) in Google Scholar

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Description

Vardenafil hydrochloride is a selective and orally active inhibitor of phosphodiesterase-5 (PDE5), with an IC50 of 0.7 nM. Vardenafil hydrochloride shows inhibitory towards PDE1, PDE6 with IC50s of 180 nM, and 11 nM, while IC50s are >1000 nM for PDE3 and PDE4[1]. Vardenafil hydrochloride competitively inhibits cyclic guanosine monophosphate (cGMP) hydrolysis and thus increases cGMP levels[2]. Vardenafil hydrochloride can be used for the research of erectile dysfunction, hepatitis, diabetes[1]-[6].

IC50 & Target[2]

PDE5

0.7 nM (IC50)

PDE6

11 nM (IC50)

PDE1

180 nM (IC50)

PDE3

>1000 nM (IC50)

PDE4

>1000 nM (IC50)

In Vitro

Vardenafil hydrochloride specifically inhibits the hydrolysis of cGMP by PDE5 with an IC50 of 0.7 nM[1].
Vardenafil hydrochloride increases intracellular cGMP levels in the cavernosum tissue of the penis, thus results increasing the dilation of the body's sinuses and blood flow[3].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

In Vivo

Vardenafil hydrochloride (I.V.; 0.03 mg/kg) exhibits facilitator effects in rats with cavernous nerve injury[4].
Vardenafil hydrochloride (I.V.; 0.17 mg/kg once daily; 7 days) protects liver against Con A–induced hepatitis, and decreases the expression of NF-[5].
Vardenafil hydrochloride (P.O.; 10 mg/kg once daily; 25 weeks) prevents the reduction of tissue cGMP levels and the increase in 3-NT generation in ZDF hearts[6].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Model: Male rat (9-week-old) underwent surgery for laparotomy or bilateral cavernous nerve (CN) crush injury[4]
Dosage: 0.03 mg/kg
Administration: Intravenous injection
Result: Restored normal erectile responses with a combind administration of BAY 60-4552 (0.03, 0.3 mg/kg).
Animal Model: Liver injury induced by Con A in male Swiss albino mice (20 ± 2 g)[5]
Dosage: 0.17 mg/kg
Administration: Intravenous injection; once daily, for 7 days; as a pretreatment
Result: Reduced the levels of serum transaminases and alleviated Con A-induced hepatitis.
Animal Model: Male 7-week-old Zucker diabetic fatty (ZDF) rats (preserved ejection fraction, HFpEF)[6]
Dosage: 10 mg/kg
Administration: Oral gavage; once daily, for 25 weeks
Result: Improved myofilament function in diabetic rat hearts.
Clinical Trial
Molecular Weight

525.06

Formula

C23H33ClN6O4S

CAS No.
Appearance

Solid

Color

White to off-white

SMILES

CCCC1=NC(C)=C2N1N=C(C(C=C(S(=O)(N3CCN(CC)CC3)=O)C=C4)=C4OCC)NC2=O.Cl

Structure Classification
Initial Source
Shipping

Room temperature in continental US; may vary elsewhere.

Storage

4°C, sealed storage, away from moisture

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

Solvent & Solubility
In Vitro: 

DMSO : 100 mg/mL (190.45 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

H2O : ≥ 100 mg/mL (190.45 mM)

*"≥" means soluble, but saturation unknown.

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 1.9045 mL 9.5227 mL 19.0454 mL
5 mM 0.3809 mL 1.9045 mL 3.8091 mL
View the Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

  • Molarity Calculator

  • Dilution Calculator

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Mass
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Molecular Weight *

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

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In Vivo:

Select the appropriate dissolution method based on your experimental animal and administration route.

For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for in vivo experiments, it is recommended to prepare freshly and use it on the same day.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

  • Protocol 1

    Add each solvent one by one:  10% DMSO    40% PEG300    5% Tween-80    45% Saline

    Solubility: ≥ 2.5 mg/mL (4.76 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.

    Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
  • Protocol 2

    Add each solvent one by one:  10% DMSO    90% (20% SBE-β-CD in Saline)

    Solubility: ≥ 2.5 mg/mL (4.76 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.

    Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.

For the following dissolution methods, please prepare the working solution directly. It is recommended to prepare fresh solutions and use them promptly within a short period of time.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

  • Protocol 1

    Add each solvent one by one:  PBS

    Solubility: 120 mg/mL (228.55 mM); Clear solution; Need ultrasonic

In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:

Dosage

mg/kg

Animal weight
(per animal)

g

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Calculation results:
Working solution concentration: mg/mL
This product has good water solubility, please refer to the measured solubility data in water/PBS/Saline for details.
The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only.If necessary, please contact MedChemExpress (MCE).
Purity & Documentation
References

Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
DMSO / H2O 1 mM 1.9045 mL 9.5227 mL 19.0454 mL 47.6136 mL
5 mM 0.3809 mL 1.9045 mL 3.8091 mL 9.5227 mL
10 mM 0.1905 mL 0.9523 mL 1.9045 mL 4.7614 mL
15 mM 0.1270 mL 0.6348 mL 1.2697 mL 3.1742 mL
20 mM 0.0952 mL 0.4761 mL 0.9523 mL 2.3807 mL
25 mM 0.0762 mL 0.3809 mL 0.7618 mL 1.9045 mL
30 mM 0.0635 mL 0.3174 mL 0.6348 mL 1.5871 mL
40 mM 0.0476 mL 0.2381 mL 0.4761 mL 1.1903 mL
50 mM 0.0381 mL 0.1905 mL 0.3809 mL 0.9523 mL
60 mM 0.0317 mL 0.1587 mL 0.3174 mL 0.7936 mL
80 mM 0.0238 mL 0.1190 mL 0.2381 mL 0.5952 mL
100 mM 0.0190 mL 0.0952 mL 0.1905 mL 0.4761 mL

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

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Vardenafil hydrochloride Related Classifications

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  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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Vardenafil hydrochloride
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