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GPR61 Inverse agonist 3

Cat No.:V136877 Purity: ≥98%
GPR61 Inverse Agonist 3 is a selective GPR61 inverse agonist that can cross the blood-brain barrier. Its human IC50 value is 4.0 nM, its mouse IC50 value is 8.8 nM, its human Ki value is 0.34 nM, and its mouse Ki value is 1.1 nM.
GPR61 Inverse agonist 3
GPR61 Inverse agonist 3 Chemical Structure Product category: PDE
This product is for research use only, not for human use. We do not sell to patients.
Size Price
500mg
1g
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Product Description
GPR61 Inverse Agonist 3 is a selective, blood-brain barrier-crossing GPR61 inverse agonist with an IC50 of 4.0 nM in humans and 8.8 nM in mice, a Ki value of 0.34 nM in humans and 1.1 nM in mice. GPR61 Inverse Agonist 3 eliminates the constitutive activity of GPR61 by disrupting the GPR61-Gαs protein interaction. GPR61 Inverse Agonist 3 exhibits moderate inhibitory activity against GABAA chloride channels and PDE3A1, with IC50 values of 4.6 μM and 8.9 μM, respectively. In adult mice co-administered with pan-CYP inhibitors, GPR61 Inverse Agonist 3 had no functional effect on food intake. GPR61 Inverse Agonist 3 could be used in studies of cachexia/sarcopenia.
Biological Activity I Assay Protocols (From Reference)
ln Vitro
GPR61 inverse agonist 3 (compound 23) effectively inhibited the constitutive activity of human GPR61 induced by TREx in CHO cells with an IC50 value of 4.0 nM and a binding constant Ki of 0.34 nM [1]. GPR61 inverse agonist 3 also effectively inhibited the constitutive activity of mouse GPR61 in CHO cells with an IC50 value of 8.8 nM and a binding constant Ki of 1.1 nM [1]. GPR61 inverse agonist 3 exhibited moderate MDR1 efflux, low BCRP efflux, good passive permeability, and high intrinsic clearance in human hepatocytes, with corresponding values of 7.4, 1.2, 32 × 10⁻⁶ cm/s, and 152 μL/min/million cells, respectively [1]. GPR61 reverse agonist 3 (10 μM) is highly selective for GPR61, with only moderate off-target activity for GABAA chloride channels (IC50 = 4.6 μM) and PDE3A1 (IC50 = 8.9 μM), and no significant activity for 104 other targets or tested ion channels [1].
ln Vivo
GPR61 inverse agonist 3 (compound 23) (300 mg/kg; oral; single dose) and ABT pretreatment did not produce a statistically significant increase in 24-hour cumulative food intake in 10-11 week old mice [1].
Animal Protocol
Animal/Disease Models:Mice (10-11 weeks old)[1]
Doses: 300 mg/kg
Route of Administration: Oral; single administration (administered 2 hours after ABT pretreatment)
Experimental Results: Compared with the vector control group, there was no statistically significant increase in the cumulative food intake over 24 hours.
References

[1]. Discovery of Potent and Brain-Penetrant Inverse Agonists for GPR61, an Orphan G Protein-Coupled Receptor. J Med Chem. 2026;69(6):7393-7404.

These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C21H23CLF2N6O4S
Molecular Weight
528.96
Appearance
Typically exists as solids at room temperature
SMILES
COCCN(S(=O)(C1=CC=C(N=C1OC)NCC2=C(C=NC=C2F)F)=O)C3=NC(C)=C(C(C)=N3)Cl
HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
May dissolve in DMSO (in most cases), if not, try other solvents such as H2O, Ethanol, or DMF with a minute amount of products to avoid loss of samples
Solubility (In Vivo)
Note: Listed below are some common formulations that may be used to formulate products with low water solubility (e.g. < 1 mg/mL), you may test these formulations using a minute amount of products to avoid loss of samples.

Injection Formulations
(e.g. IP/IV/IM/SC)
Injection Formulation 1: DMSO : Tween 80: Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution 50 μL Tween 80 850 μL Saline)
*Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH ₂ O to obtain a clear solution.
Injection Formulation 2: DMSO : PEG300Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL DMSO 400 μLPEG300 50 μL Tween 80 450 μL Saline)
Injection Formulation 3: DMSO : Corn oil = 10 : 90 (i.e. 100 μL DMSO 900 μL Corn oil)
Example: Take the Injection Formulation 3 (DMSO : Corn oil = 10 : 90) as an example, if 1 mL of 2.5 mg/mL working solution is to be prepared, you can take 100 μL 25 mg/mL DMSO stock solution and add to 900 μL corn oil, mix well to obtain a clear or suspension solution (2.5 mg/mL, ready for use in animals).
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Injection Formulation 4: DMSO : 20% SBE-β-CD in saline = 10 : 90 [i.e. 100 μL DMSO 900 μL (20% SBE-β-CD in saline)]
*Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.
Injection Formulation 5: 2-Hydroxypropyl-β-cyclodextrin : Saline = 50 : 50 (i.e. 500 μL 2-Hydroxypropyl-β-cyclodextrin 500 μL Saline)
Injection Formulation 6: DMSO : PEG300 : castor oil : Saline = 5 : 10 : 20 : 65 (i.e. 50 μL DMSO 100 μLPEG300 200 μL castor oil 650 μL Saline)
Injection Formulation 7: Ethanol : Cremophor : Saline = 10: 10 : 80 (i.e. 100 μL Ethanol 100 μL Cremophor 800 μL Saline)
Injection Formulation 8: Dissolve in Cremophor/Ethanol (50 : 50), then diluted by Saline
Injection Formulation 9: EtOH : Corn oil = 10 : 90 (i.e. 100 μL EtOH 900 μL Corn oil)
Injection Formulation 10: EtOH : PEG300Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL EtOH 400 μLPEG300 50 μL Tween 80 450 μL Saline)


Oral Formulations
Oral Formulation 1: Suspend in 0.5% CMC Na (carboxymethylcellulose sodium)
Oral Formulation 2: Suspend in 0.5% Carboxymethyl cellulose
Example: Take the Oral Formulation 1 (Suspend in 0.5% CMC Na) as an example, if 100 mL of 2.5 mg/mL working solution is to be prepared, you can first prepare 0.5% CMC Na solution by measuring 0.5 g CMC Na and dissolve it in 100 mL ddH2O to obtain a clear solution; then add 250 mg of the product to 100 mL 0.5% CMC Na solution, to make the suspension solution (2.5 mg/mL, ready for use in animals).
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Oral Formulation 3: Dissolved in PEG400
Oral Formulation 4: Suspend in 0.2% Carboxymethyl cellulose
Oral Formulation 5: Dissolve in 0.25% Tween 80 and 0.5% Carboxymethyl cellulose
Oral Formulation 6: Mixing with food powders


Note: Please be aware that the above formulations are for reference only. InvivoChem strongly recommends customers to read literature methods/protocols carefully before determining which formulation you should use for in vivo studies, as different compounds have different solubility properties and have to be formulated differently.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 1.8905 mL 9.4525 mL 18.9050 mL
5 mM 0.3781 mL 1.8905 mL 3.7810 mL
10 mM 0.1891 mL 0.9453 mL 1.8905 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

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An example of molarity calculation using the molarity calculator is shown below:
What is the mass of compound required to make a 10 mM stock solution in 5 ml of DMSO given that the molecular weight of the compound is 350.26 g/mol?
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  • The answer of 17.513 mg appears in the Mass box. In a similar way, you may calculate the volume and concentration.

Dilution Calculator allows you to calculate how to dilute a stock solution of known concentrations. For example, you may Enter C1, C2 & V2 to calculate V1, as detailed below:

What volume of a given 10 mM stock solution is required to make 25 ml of a 25 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:
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Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
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Definitions of molecular mass, molecular weight, molar mass and molar weight:
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In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
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Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.

Method for preparing in vivo formulation:Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
             (2) Be sure to add the solvent(s) in order.

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