2. Autophagy Immunology/Inflammation
  3. Autophagy COX
  4. Naproxen sodium

Naproxen sodium is a COX-1 and COX-2 inhibitor with IC50s of 8.72 and 5.15 μM, respectively in cell assay.

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Naproxen sodium Chemical Structure

Naproxen sodium Chemical Structure

CAS No. : 26159-34-2

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Based on 2 publication(s) in Google Scholar

Other Forms of Naproxen sodium:

Naproxen sodium Related Antibodies

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  • Biological Activity

  • Protocol

  • Purity & Documentation

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Description

Naproxen sodium is a COX-1 and COX-2 inhibitor with IC50s of 8.72 and 5.15 μM, respectively in cell assay.

IC50 & Target[1]

COX-2

5.65 μM (IC50, in intact cells )

COX-1

9.55 μM (IC50, in intact cells )

In Vitro

Naproxen etemesil is a lipophilic, non-acidic, inactive prodrug of naproxen that is hydrolysed to pharmacologically active Naproxen once absorbed. Naproxen is a well known nonsteroidal anti-inflammatory drug. Naproxen is approximately equipotent inhibitor of COX-1 and COX-2 in intact cells with IC50s of 2.2 μg/mL and 1.3 μg/mL, respectively[1].

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

Naproxen sodium Related Antibodies
In Vivo

Naproxen exerts an anti-inflammatory and antifibrotic effect in mouse model of bleomycin-induced lung fibrosis. Naproxen also downregulates TGF-β levels and Smad3/4 complex formation[2]. Naproxen is shown to inhibit the time-courses of pain, fever and PGE2 with similar potencies (IC50=27, 40, 13 μM)[3].

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

252.24

Formula

C14H13NaO3
CAS No.
Appearance

Solid

Color

White to off-white

SMILES

C[C@H](C(O[Na])=O)C1=CC2=CC=C(OC)C=C2C=C1
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: 

H2O : 75 mg/mL (297.34 mM; Need ultrasonic and warming)

DMSO : 5 mg/mL (19.82 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 3.9645 mL 19.8224 mL 39.6448 mL
5 mM 0.7929 mL 3.9645 mL 7.9290 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
=
Concentration
×
Volume
×
Molecular Weight *

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

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

×
Volume (start)

V1

=
Concentration (final)

C2

×
Volume (final)

V2

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: ≥ 0.5 mg/mL (1.98 mM); Clear solution

    This protocol yields a clear solution of ≥ 0.5 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (5.0 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: ≥ 0.5 mg/mL (1.98 mM); Clear solution

    This protocol yields a clear solution of ≥ 0.5 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (5.0 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 (475.74 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

Purity: 99.87%

COA (246 KB) LCMS (278 KB)

Handling Instructions (2659 KB)
References
Cell Assay
[1]

BAEC are incubated for 30 min with Naproxen (0.1 ng/mL to 1 mg/mL). Arachidonic acid (30 μM) is then added, and the cells are incubated for a further 15 min at 37°C. The medium is then removed, and radioimmunoassay is used to measure the formation of 6-keto-PGF,a, PGE2, thromboxane B2, or PGF2a[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
Animal Administration
[2][3]

Rats[3]

To measure the analgesic effects of naproxen in a carrageenaninduced model of monoarthritis, Male Sprague–Dawley rats (n=48, 217±28 g) are randomly divided into four groups of 12 by an internally developed computer program, allowing the blind performance of the behavioral experiment. To induce hyperalgesia by inflammation, animals in groups 1B, 1C, and 1D receive a 40-μL intra-articular injection of a saline solution containing 7.5 mg/mL carrageenan in the left hind limb under isoflurane anesthesia (time=−1 h). Animals in group 1A receive no injection. After 1 h (time=0) the animals in groups 1A, 1B, 1C, and 1D receive oral doses of naproxen in saline of 0, 0, 7.5 and 30 μmol/kg, respectively. The doses and time points of measurements are selected on the basis of simulations predicting measuring a full concentration-effect relationship within the time-span of the experiment[3].

Mice[2]

Bleomycin (0.05 IU) is instilled intratracheally to C57BL/6 mice, which are then treated by micro-osmotic pump with vehicle, JNJ7777120 (40 mg/kg b.wt.), naproxen (21 mg/kg b.wt.), or a combination of both. Airway resistance to inflation, an index of lung stiffness, is assessed, and lung specimens are processed for inflammation, oxidative stress, and fibrosis markers[2].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
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 3.9645 mL 19.8224 mL 39.6448 mL 99.1120 mL
5 mM 0.7929 mL 3.9645 mL 7.9290 mL 19.8224 mL
10 mM 0.3964 mL 1.9822 mL 3.9645 mL 9.9112 mL
15 mM 0.2643 mL 1.3215 mL 2.6430 mL 6.6075 mL
H2O 20 mM 0.1982 mL 0.9911 mL 1.9822 mL 4.9556 mL
25 mM 0.1586 mL 0.7929 mL 1.5858 mL 3.9645 mL
30 mM 0.1321 mL 0.6607 mL 1.3215 mL 3.3037 mL
40 mM 0.0991 mL 0.4956 mL 0.9911 mL 2.4778 mL
50 mM 0.0793 mL 0.3964 mL 0.7929 mL 1.9822 mL
60 mM 0.0661 mL 0.3304 mL 0.6607 mL 1.6519 mL
80 mM 0.0496 mL 0.2478 mL 0.4956 mL 1.2389 mL
100 mM 0.0396 mL 0.1982 mL 0.3964 mL 0.9911 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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Naproxen sodium Related Classifications

Help & FAQs
  • 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.

Keywords:

Naproxen26159-34-2AutophagyCOXCyclooxygenaseInhibitorinhibitorinhibit

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