2. Immunology/Inflammation
  3. COX
  4. Etoricoxib

Etoricoxib  (Synonyms: MK-0663; L-791456)

Cat. No.: HY-15321 Purity: 99.90%
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Etoricoxib (MK-0663) is a non steroidal anti-inflammatory agent, acting as a selective and orally active COX-2 inhibitor, with IC50s of 1.1 μM and 116 μM for COX-2 and COX-1 in human whole blood.

For research use only. We do not sell to patients.

Etoricoxib Chemical Structure

Etoricoxib Chemical Structure

CAS No. : 202409-33-4

Size Price Stock Quantity
Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO
ready for reconstitution
 USD 28 In-stock
Solution
10 mM * 1 mL in DMSO USD 28 In-stock
Solid
5 mg USD 25 In-stock
10 mg USD 40 In-stock
50 mg USD 93 In-stock
100 mg USD 160 In-stock
200 mg   Get quote  
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Based on 1 publication(s) in Google Scholar

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Etoricoxib Related Antibodies

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  • Biological Activity

  • Protocol

  • Purity & Documentation

  • References

  • Customer Review

Description

Etoricoxib (MK-0663) is a non steroidal anti-inflammatory agent, acting as a selective and orally active COX-2 inhibitor, with IC50s of 1.1 μM and 116 μM for COX-2 and COX-1 in human whole blood.

IC50 & Target[1]

COX-2

1.1 μM (IC50, in human whole blood)

COX-1

116 μM (IC50, in human whole blood)

Cellular Effect
Cell Line Type Value Description References
CHO IC50
0.081 μM
Compound: 28
Inhibition of human COX-2 transfected in CHO cells using arachidonic acid as substrate
Inhibition of human COX-2 transfected in CHO cells using arachidonic acid as substrate
[PMID: 30396033]
CHO IC50
0.081 μM
Compound: 33
In vitro inhibition of PGE-2 produced by arachidonic acid-stimulated CHO cells stably expressing human Prostaglandin G/H synthase 2
In vitro inhibition of PGE-2 produced by arachidonic acid-stimulated CHO cells stably expressing human Prostaglandin G/H synthase 2
[PMID: 9873621]
U-937 IC50
12 μM
Compound: 33
Inhibition of Prostaglandin G/H synthase 1 was measured by the inhibition of PGE-2 produced by microsomes from U937 cells at subsaturating arachidonic acid conc.
Inhibition of Prostaglandin G/H synthase 1 was measured by the inhibition of PGE-2 produced by microsomes from U937 cells at subsaturating arachidonic acid conc.
[PMID: 9873621]
In Vitro

Etoricoxib (MK-0663) is a selective and orally active COX-2 inhibitor, with IC50s of 1.1 μM, 116 μM and 5 μM for COX-2, COX-1 in human whole blood and purified human COX-2, respectively. Etoricoxib (MK-0663) shows inhibitory effect on PGE2 production by CHO (COX-2) cells (IC50, 79 nM), on purified human COX-2 with detergent (IC50, 4.1 μM), and on purified PGE2 production by U937 microsomes (low substrate; IC50, 12.1 μM). However, Etoricoxib (MK-0663) has little activity against COX-1 with a Ki of 167 μM[1].

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

Etoricoxib Related Antibodies
In Vivo

Etoricoxib (MK-0663) (0.1-30 mg/kg, p.o.) dose-dependently inhibits carrageenan-induced paw edema, carrageenan-induced paw hyperalgesia, and endotoxin-induced pyresis in rats. Etoricoxib (≥10 mg/kg) completely reverses hyperalgesia response in the rat hyperalgesia model. Etoricoxib (MK-0663) (200 mg/kg/day) has no effect on urinary 51Cr excretion in rats, and nor in monkeys at 100 mg/kg/day[1]. Etoricoxib (MK-0663) (50 and 100?mg/kg) potently increases the malondialdehyde (MDA) and myeloperoxidase (MPO) levels, and decreases the total glutathione (tGSH) and glutathione reductase (GSHRd) levels in rats. Etoricoxib (MK-0663) (100?mg/kg) significantly inhibits the decrease of NO in rats[2]. Etoricoxib (MK-0663) (0.64 mg/kg, p.o.) reduces the features such as multiple plaque lesions, hyperplasia and dysplasia induced by 1,2-dimethylhydrazine dihydrochloride (DMH) in rats[3].

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

358.84

Formula

C18H15ClN2O2S
CAS No.
Appearance

Solid

Color

Light yellow to yellow

SMILES

O=S(C1=CC=C(C2=CC(Cl)=CN=C2C3=CC=C(C)N=C3)C=C1)(C)=O
Shipping

Room temperature in continental US; may vary elsewhere.
Storage
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 2 years
-20°C 1 year
Solvent & Solubility
In Vitro: 

DMSO : 100 mg/mL (278.68 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 2.7868 mL 13.9338 mL 27.8676 mL
5 mM 0.5574 mL 2.7868 mL 5.5735 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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

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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: ≥ 2.5 mg/mL (6.97 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 (6.97 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.
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.
Please enter your animal formula composition:
%
DMSO +
% 
+
%
Tween-80 +
%
Saline
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).
Calculation results:
Working solution concentration: mg/mL
Method for preparing stock solution: mg drug dissolved in μL  DMSO (Stock solution concentration: mg/mL).
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).
Method for preparing in vivo working solution for animal experiments: Take μL DMSO stock solution, add μL . μL , mix evenly, next add μL Tween 80, mix evenly, then add μL Saline.
 If the continuous dosing period exceeds half a month, please choose this protocol carefully.
Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
Purity & Documentation
References
Animal Administration
[3]

Rats[3]
Animals are assorted into the following groups with four to six animals in each group: Control Group, Animals are administrated the vehicle (1mM EDTA-saline subcutaneously) in weekly injection and 0.5% carboxymethyl cellulose per oral daily; 1,2-dimethylhydrazine dihydrochloride (DMH) Group, animals are administrated with DMH weekly at a dose of 30 mg/kg body weight subcutaneously, DMH is freshly prepared in 1mM EDTA-saline, pH adjusted to 7.0 using dilute NaOH solution; DMH + Etoricoxib Group, Etoricoxib (MK-0663) is given daily per oral at its therapeutic anti-inflammatory dose (ED50 for rats, 0.64 mg/kg body weight) to the animals along with the weekly administration of DMH; and Etoricoxib Group: Etoricoxib (MK-0663) alone is administered orally daily (0.64 mg/kg body weight). After six weeks, animals are kept on overnight fasting with drinking water ad libitum and sacrificed the next day. The animal body weights in all the groups are recorded once in a week till the termination.[3].

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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 2.7868 mL 13.9338 mL 27.8676 mL 69.6689 mL
5 mM 0.5574 mL 2.7868 mL 5.5735 mL 13.9338 mL
10 mM 0.2787 mL 1.3934 mL 2.7868 mL 6.9669 mL
15 mM 0.1858 mL 0.9289 mL 1.8578 mL 4.6446 mL
20 mM 0.1393 mL 0.6967 mL 1.3934 mL 3.4834 mL
25 mM 0.1115 mL 0.5574 mL 1.1147 mL 2.7868 mL
30 mM 0.0929 mL 0.4645 mL 0.9289 mL 2.3223 mL
40 mM 0.0697 mL 0.3483 mL 0.6967 mL 1.7417 mL
50 mM 0.0557 mL 0.2787 mL 0.5574 mL 1.3934 mL
60 mM 0.0464 mL 0.2322 mL 0.4645 mL 1.1611 mL
80 mM 0.0348 mL 0.1742 mL 0.3483 mL 0.8709 mL
100 mM 0.0279 mL 0.1393 mL 0.2787 mL 0.6967 mL
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Etoricoxib 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:

Etoricoxib202409-33-4MK-0663 L-791456MK0663MK 0663L791456L 791456L-791456COXCyclooxygenaseInhibitorinhibitorinhibit

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