2. GPCR/G Protein Neuronal Signaling
  3. mGluR
  4. MPEP

MPEP is a potent, selective, noncompetitive, orally active and systemically active mGlu5 receptor antagonist, with an IC50 of 36 nM for completely inhibiting quisqualate-stimulated phosphoinositide (PI) hydrolysis. MPEP has anxiolytic-or antidepressant-like effects. MPEP is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

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MPEP Chemical Structure

MPEP Chemical Structure

CAS No. : 96206-92-7

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Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO
ready for reconstitution
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Based on 3 publication(s) in Google Scholar

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MPEP Related Antibodies

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  • Purity & Documentation

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  • Customer Review

Description

MPEP is a potent, selective, noncompetitive, orally active and systemically active mGlu5 receptor antagonist, with an IC50 of 36 nM for completely inhibiting quisqualate-stimulated phosphoinositide (PI) hydrolysis. MPEP has anxiolytic-or antidepressant-like effects[1][2]. MPEP is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

IC50 & Target[1]

mGluR5

36 nM (IC50)

In Vitro

MPEP does not show agonist or antagonist activity at 100 mM on human mGlu2, -3, -4a, -7b, and -8a receptors nor at 10 μM on the human mGlu6 receptor[1].

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

MPEP Related Antibodies
In Vivo

MPEP (1-30 mg/kg) induces anxiolytic-like effects in the conflict drinking test and the elevated plus-maze test in rats as well as in the four-plate test in mice[2].
MPEP (1-20 mg/kg) does shorten the immobility time in a tail suspension test in mice, however it is inactive in the behavioural despair test in rats[2].
MPEP (30 mg/kg i.p.) slightly but significantly increases (by 39%) the number of punished crossings in the four-plate test, lower doses of the compound (3 and 10 mg/kg) does not affect the number of punished crossings in that test (F (3,36)=3.240, P<0.05)[2].
MPEP (1, 10 and 20 mg/kg) significantly (by 55% after the highest dose), (F(3,28)=15.47, P<0.001) decreases the immobility time of mice in the tail suspension test. Its efficacy is similar to that of imipramine (20 mg/kg), used as the positive standard[2].

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

Animal Model: Male Wistar rats (200 ± 250 g)[2].
Dosage: IP or PO.
Administration: 0.3, 1 and 10 mg/kg, i.p. (Conflict drinking test).
Result: At a dose of 0.3 mg/kg was not ffective, at doses of 1 and 10 mg/kg i.p. significantly (F (3,30)=11.193, P<0.001), increased the number of shocks (by 330 and 507%, respectively) accepted during the experimental session in the Vogel test.
Animal Model: Male Wistar rats (200 ± 250 g)[2].
Dosage: IP or PO.
Administration: 1, 3 and 10 mg/kg, i.p. or 10 and 30 mg/kg, p.o.(Elevated plus-maze test).
Result: Administered at a dose of 1 mg kg71 i.p. did not change the entries into and time spent in the open arms. At doses of 3 and 10 mg/kg i.p. significantly (F (3,24)=22.978, P<0.001) dose-dependently increased the time spent in the open arms (up to 45 and 74%, respectively), and the percentage of entries into the open arms (up to 48 and 68%, respectively, F(3,24)=5.678, P<.01). At doses of 3 and 10 mg/kg i.p. significantly increased (by 64%) the total number of entries and reduced (by about 25%) the total time spent (data not shown) in the arms (either type).
At the dose of 30 mg/kg (po, but not 10 mg/kg) significantly (up to 64%, F (2,16)=14.249, P<0.001) increased the percentage of the time spent in the open arms and the percentage of entries into the open arms (up to 63%, F (2,16)=7.295, P<0.01). MPEP given p.o. in both doses used did not change the total number of entries nor the total time spent in the arms (either type).
Molecular Weight

193.24

Formula

C14H11N
CAS No.
Appearance

Solid

Color

Yellow to brown

SMILES

CC1=NC(C#CC2=CC=CC=C2)=CC=C1
Shipping

Room temperature in continental US; may vary elsewhere.
Storage
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
Solvent & Solubility
In Vitro: 

DMSO : 100 mg/mL (517.49 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 5.1749 mL 25.8746 mL 51.7491 mL
5 mM 1.0350 mL 5.1749 mL 10.3498 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. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

  • Molarity Calculator

  • Dilution Calculator

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

Mass
=
Concentration
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Volume
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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 (12.94 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 (12.94 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

Purity: 99.33%

COA (247 KB) LCMS (92 KB)

Handling Instructions (2659 KB)
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. 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 1 mM 5.1749 mL 25.8746 mL 51.7491 mL 129.3728 mL
5 mM 1.0350 mL 5.1749 mL 10.3498 mL 25.8746 mL
10 mM 0.5175 mL 2.5875 mL 5.1749 mL 12.9373 mL
15 mM 0.3450 mL 1.7250 mL 3.4499 mL 8.6249 mL
20 mM 0.2587 mL 1.2937 mL 2.5875 mL 6.4686 mL
25 mM 0.2070 mL 1.0350 mL 2.0700 mL 5.1749 mL
30 mM 0.1725 mL 0.8625 mL 1.7250 mL 4.3124 mL
40 mM 0.1294 mL 0.6469 mL 1.2937 mL 3.2343 mL
50 mM 0.1035 mL 0.5175 mL 1.0350 mL 2.5875 mL
60 mM 0.0862 mL 0.4312 mL 0.8625 mL 2.1562 mL
80 mM 0.0647 mL 0.3234 mL 0.6469 mL 1.6172 mL
100 mM 0.0517 mL 0.2587 mL 0.5175 mL 1.2937 mL
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MPEP 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:

MPEP96206-92-7mGluRMetabotropic glutamate receptorsInhibitorinhibitorinhibit

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