2. GPCR/G Protein
  3. GCGR
  4. GRA Ex-25

GRA Ex-25 is an inhibitor of glucagon receptor, with IC50 of 56 and 55 nM for rat and human glucagon receptors, respectively.

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

GRA Ex-25 Chemical Structure

GRA Ex-25 Chemical Structure

CAS No. : 307983-31-9

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10 mM * 1 mL in DMSO
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Customer Review

Based on 1 publication(s) in Google Scholar

GRA Ex-25 Related Antibodies

Top Publications Citing Use of Products

  • Biological Activity

  • Protocol

  • Purity & Documentation

  • References

  • Customer Review

Description

GRA Ex-25 is an inhibitor of glucagon receptor, with IC50 of 56 and 55 nM for rat and human glucagon receptors, respectively.

IC50 & Target

IC50: 56 nM (rat glucagon receptor), 55 nM (human glucagon receptor)[2]
In Vitro

GRA Ex-25 binds a human glucagon receptor (h-GlucRbind) with Ki of 63 nM and a moderate glucagon induced adenylate cyclase inhibition (h-GlucRcyclase) with Ki of 254 nM under our assay conditions[1]. GRA Ex-25 has similar affinity to the rat and human glucagon receptors (IC50=56 and 55 nM, respectively)[2].

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

GRA Ex-25 Related Antibodies
In Vivo

GRA Ex-25 (3 mg/kg, i.v.) significantly reduces blood glucose caused by exogenous administration of glucagon in rat model. GRA Ex-25 is able to inhibit the rise in blood glucose levels elicited by exogenous administered glucagon, most likely because of the direct inhibition of glucagon stimulated hepatic glucose output[2].

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

563.61

Formula

C29H36F3N3O5
CAS No.
Appearance

Solid

Color

White to off-white

SMILES

O=C(O)CCNC(C1=CC=C(CN([C@H]2CC[C@H](C(C)(C)C)CC2)C(NC3=CC=C(OC(F)(F)F)C=C3)=O)C=C1)=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 : ≥ 32 mg/mL (56.78 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 1.7743 mL 8.8714 mL 17.7428 mL
5 mM 0.3549 mL 1.7743 mL 3.5486 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
=
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 (4.44 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: ≥ 2.08 mg/mL (3.69 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 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: 98.59%

COA (246 KB) HNMR (288 KB) LCMS (269 KB)

Handling Instructions (2659 KB)
References
Animal Administration
[2]

Non-fasted male Sprague Dawley rats (200 g) are maintained in the anaesthetized state during the test by s.c. administration of a 1:1 mixture of Hypnorm (fentanyl, 0.05 mg/mL and fluanizone, 2.5 mg/mL) and Dormicum (Midazolam, 1.25 mg/mL). Acatheter is inserted in a jugular vein for administration of compounds. Approximately 60 min after initiation of anesthesia, test compounds (0, 1, 3, 10 and 30 mg/kg) and glucagon (3 μg/kg) are administered in 5 min intervals, respectively. Samples for determination of blood glucose concentrations are taken from the tail tip 25 and 5 min prior to administration of the compound to represent average basal values and again 10 min after administration of glucagon (time for peak response of glucagon). The results are expressed as delta values calculated as the value obtained 10 min after alucagon administration minus the average of the two basal values.

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 1.7743 mL 8.8714 mL 17.7428 mL 44.3570 mL
5 mM 0.3549 mL 1.7743 mL 3.5486 mL 8.8714 mL
10 mM 0.1774 mL 0.8871 mL 1.7743 mL 4.4357 mL
15 mM 0.1183 mL 0.5914 mL 1.1829 mL 2.9571 mL
20 mM 0.0887 mL 0.4436 mL 0.8871 mL 2.2179 mL
25 mM 0.0710 mL 0.3549 mL 0.7097 mL 1.7743 mL
30 mM 0.0591 mL 0.2957 mL 0.5914 mL 1.4786 mL
40 mM 0.0444 mL 0.2218 mL 0.4436 mL 1.1089 mL
50 mM 0.0355 mL 0.1774 mL 0.3549 mL 0.8871 mL
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GRA Ex-25 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:

GRA Ex-25307983-31-9GRA Ex25GRA Ex 25GCGRGlucagon ReceptorInhibitorinhibitorinhibit

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