2. GPCR/G Protein
  3. TSH Receptor
  4. MS438

MS438 is a potent thyrotropin receptor (TSHR) agonist with an EC50 of 53 nM. MS438 binds to the serpentine portion of the TSHR. MS438 induces T4 secretion in mice.

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MS438 Chemical Structure

MS438 Chemical Structure

CAS No. : 512840-45-8

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5 mg USD 125 In-stock
10 mg USD 200 In-stock
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MS438 Related Antibodies

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Description

MS438 is a potent thyrotropin receptor (TSHR) agonist with an EC50 of 53 nM. MS438 binds to the serpentine portion of the TSHR. MS438 induces T4 secretion in mice[1].

IC50 & Target

EC50: 53 nM (TSHR)[1]
Molecular Weight

390.36

Formula

C20H17F3N2O3
CAS No.
Appearance

Solid

Color

White to off-white

SMILES

O=C(OCC1=CC=CC=C1)C2=C(NC(NC2C3=CC=C(C=C3)C(F)(F)F)=O)C
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 (256.17 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 2.5617 mL 12.8087 mL 25.6174 mL
5 mM 0.5123 mL 2.5617 mL 5.1235 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
×
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    90% Corn Oil

    Solubility: ≥ 2.5 mg/mL (6.40 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

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 2.5617 mL 12.8087 mL 25.6174 mL 64.0434 mL
5 mM 0.5123 mL 2.5617 mL 5.1235 mL 12.8087 mL
10 mM 0.2562 mL 1.2809 mL 2.5617 mL 6.4043 mL
15 mM 0.1708 mL 0.8539 mL 1.7078 mL 4.2696 mL
20 mM 0.1281 mL 0.6404 mL 1.2809 mL 3.2022 mL
25 mM 0.1025 mL 0.5123 mL 1.0247 mL 2.5617 mL
30 mM 0.0854 mL 0.4270 mL 0.8539 mL 2.1348 mL
40 mM 0.0640 mL 0.3202 mL 0.6404 mL 1.6011 mL
50 mM 0.0512 mL 0.2562 mL 0.5123 mL 1.2809 mL
60 mM 0.0427 mL 0.2135 mL 0.4270 mL 1.0674 mL
80 mM 0.0320 mL 0.1601 mL 0.3202 mL 0.8005 mL
100 mM 0.0256 mL 0.1281 mL 0.2562 mL 0.6404 mL
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MS438 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:

MS438512840-45-8MS 438MS-438TSH ReceptorThyrotropin receptorThyroid-stimulating hormone ReceptorTSHRthyroglobulinsodium iodine symporterHEK 293C57BL/6JInhibitorinhibitorinhibit

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