2. GPCR/G Protein Neuronal Signaling
  3. Cannabinoid Receptor
  4. Taranabant

Taranabant is a highly potent and selective cannabinoid 1 (CB1) receptor inverse agonist that inhibits the binding and functional activity of various agonists, with a binding Ki of 0.13 nM for the human CB1R in vitro.

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Taranabant Chemical Structure

Taranabant Chemical Structure

CAS No. : 701977-09-5

Size Price Stock Quantity
Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO
ready for reconstitution
 USD 270 In-stock
Solution
10 mM * 1 mL in DMSO USD 270 In-stock
Solid
2 mg USD 119 In-stock
5 mg USD 238 In-stock
10 mg USD 370 In-stock
25 mg USD 766 In-stock
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Based on 2 publication(s) in Google Scholar

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Taranabant Related Antibodies

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  • Biological Activity

  • Protocol

  • Purity & Documentation

  • References

  • Customer Review

Description

Taranabant is a highly potent and selective cannabinoid 1 (CB1) receptor inverse agonist that inhibits the binding and functional activity of various agonists, with a binding Ki of 0.13 nM for the human CB1R in vitro.

IC50 & Target

IC50: 0.3 nM (hCB1R), 0.4 nM (rCB1R)[1]
Ki: 0.13 nM (hCB1R), 0.27 nM (rCB1R)[1]
In Vitro

Taranabant (MK-0364) binds to human or rat CB1R with an IC50 of 0.3 and 0.4 nM, respectively, corresponding to a Ki value of 0.13 and 0.27 nM, respectively. Taranabant binds to the human or rat CB2R with an IC50 value of 290 and 470 nM, respectively, corresponding to a Ki value of 170 and 310 nM, respectively. The selectivity ratio of CB1R over CB2R is approximately 1000-fold[1]. Taranabant (MK-0364) is a novel, acyclic cannabinoid-1 receptor inverse agonist for the treatment of obesity. IC50s of Taranabant for CB1R and CB2R by substituted amides is 0.3±0.1 nM, and 290±60 nM, respectively. Taranabant is a CB1R inverse agonist with minimal potential for covalent protein binding. Taranabant is an exceptionally potent and selective (900-fold over CB2) CB1R inverse agonist with >500-fold improvement in affinity over the original lead. In a functional assay of cyclic-AMP production, Taranabant is determined to be an inverse agonist (EC50=2.4±1.4 nM)[2].

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

Taranabant Related Antibodies
In Vivo

Taranabant (MK-0364) dose-dependently inhibits 2 h and overnight food intake as well as overnight gains in body weight in C57BL/6N mice. At the 1- and 3-mg/kg doses (p.o.), Taranabant significantly inhibits 2-h food intake (36 and 69% reductions, respectively; P<0.05 and P<0.00001, respectively) and overnight food intake (13 and 40% reductions, respectively; P<0.05 and P<0.00001, respectively) as well as overnight gains in body weight (48 and 165% reductions, respectively; P<0.01 and P<0.00001, respectively). Taranabant dose-dependently inhibits food intake and weight gain, with an acute minimum effective dose of 1 mg/kg in diet-induced obese (DIO) rats[1]. Taranabant (MK-0364) has a good pharmacokinetic profile in three species (rat, 1 mg/kg iv, 2 mg/kg po, F=74%, t1/2=2.7 h; dog, 0.2 mg/kg iv, 0.4 mg/kg po, F=31%; t1/2=14 h; rhesus monkey, 0.2 mg/kg iv, 0.4 mg/kg po, F=31%, t1/2=3.6 h) and good brain exposure (1 mg/kg iv, brain and plasma concentrations of 0.11 and 0.18 μM at 1 h, respectively)[2].

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

515.95

Formula

C27H25ClF3N3O2
CAS No.
Appearance

Solid

Color

White to off-white

SMILES

ClC1=CC=C(C[C@@H](C2=CC=CC(C#N)=C2)[C@@H](NC(C(C)(OC3=CC=C(C=N3)C(F)(F)F)C)=O)C)C=C1
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 : ≥ 42 mg/mL (81.40 mM; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

*"≥" means soluble, but saturation unknown.

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 1.9382 mL 9.6909 mL 19.3817 mL
5 mM 0.3876 mL 1.9382 mL 3.8763 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.

  • Molarity Calculator

  • Dilution Calculator

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

Mass
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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

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Volume (start)

V1

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C2

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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 (4.85 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% Corn Oil

    Solubility: ≥ 2.5 mg/mL (4.85 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown). If the continuous dosing period exceeds half a month, please choose this protocol carefully.

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 900 μL Corn oil, and mix evenly.

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
Kinase Assay
[1]

The binding assay is performed by incubating various concentrations of Taranabant (MK-0364) with 0.5 nM [3H]CP 55,940, 1.5 μg of recombinant human CB1R-CHO membranes (or 0.1 μg of human CB2R-CHO membranes) in 50 mM Tris-HCl, pH 7.4, 5 mM MgCl2, 2.5 mM EDTA, 0.5 mg/mL fatty acid-free bovine serum albumin (BSA), 1× proteinase inhibitor mix, and 1% DMSO. After 1-h incubation at 37°C, the reaction is stopped by filtration, and bound radioligand is separated from free radioligand by washing the filter plate. Total specifically bound radiolabel is approximately 10% of the total added radiolabel. Inhibitory IC50 values are calculated through nonlinear curve fitting, from which Ki values are then calculated. The CB1R density (Bmax=5 pmol/mg based on [3H]CP 55,940 binding) in the recombinant human CB1R-CHO membranes is close to that from rat brain membranes (3-5 pmol/mg)[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
Animal Administration
[1]

Mice[1]
Male C57BL/6N wild-type mice are used. MK-0364 is dissolved or dispersed (with sonication) as a fine homogeneous suspension in 0.225% methylcellulose/10% Tween 80 in water for subsequent oral dosing of mice. All mice are weighed, and vehicle (0.225% methylcellulose/10% Tween 80 in water) or Taranabant (1 or 3 mg/kg) is administered by oral gavage to male mice approximately 30 min before the onset of the dark phase of the light cycle (n=12 per group, age 23 weeks, mean body weight 34.14±0.53 g). Mice are fed ad libitum in the dark phase after dosing. A preweighed aliquot of a highly palatable medium-high fat diet (25% kcal from sucrose, 32% kcal from fat, 4.41 kcal/g) is provided in the food hopper of the cage 5 min before the onset of the dark phase of the light cycle and weighed 2 and 18 h after the onset of the dark phase of the light cycle. In addition, all mice are weighed 18 h after the onset of the dark phase of the light cycle. The study is of crossover design, i.e., vehicle and 1-mk/kg groups are dosed first. After a 4-day washout, the previous vehicle group is dosed with 3 mg/kg Taranabant, and the previous 1-mg/kg group is dosed with vehicle.
Rats[1]
For acute experiments, male Sprague-Dawley DIO rats are randomized into groups (n=6 rats/group) for compound and vehicle dosing. Rats are weighed 17 h after dosing to determine effects on overnight body weight gain. Taranabant is administered orally to DIO rats 1 h before the start of the dark cycle (3:00 PM) at 0.3, 1, and 3 mg/kg p.o. Vehicle is 10% Tween 80 in water, and dosing volume is 2 mL/kg. Powdered food is provided in food cups that are weighed continuously at 5-min intervals over 18 h, and the data are recorded using a computerized system.

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 1.9382 mL 9.6909 mL 19.3817 mL 48.4543 mL
5 mM 0.3876 mL 1.9382 mL 3.8763 mL 9.6909 mL
10 mM 0.1938 mL 0.9691 mL 1.9382 mL 4.8454 mL
15 mM 0.1292 mL 0.6461 mL 1.2921 mL 3.2303 mL
20 mM 0.0969 mL 0.4845 mL 0.9691 mL 2.4227 mL
25 mM 0.0775 mL 0.3876 mL 0.7753 mL 1.9382 mL
30 mM 0.0646 mL 0.3230 mL 0.6461 mL 1.6151 mL
40 mM 0.0485 mL 0.2423 mL 0.4845 mL 1.2114 mL
50 mM 0.0388 mL 0.1938 mL 0.3876 mL 0.9691 mL
60 mM 0.0323 mL 0.1615 mL 0.3230 mL 0.8076 mL
80 mM 0.0242 mL 0.1211 mL 0.2423 mL 0.6057 mL
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Taranabant 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:

Taranabant701977-09-5MK-0364MK0364MK 0364Cannabinoid ReceptorInhibitorinhibitorinhibit

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