1. Protein Tyrosine Kinase/RTK
  2. RET
  3. WF-47-JS03

WF-47-JS03 is a potent and selective RET kinase inhibitor with IC50s of 1.7 nM and 5.3 nM for KIF5B-RET transfected Ba/F3 cells and CCDC6-RET transfected LC-2/ad lung cancer cells, respectively. WF-47-JS03 demonstrates >500-fold selectivity against kinase insert domain receptor (KDR). Effective brain penetration.

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

WF-47-JS03 Chemical Structure

WF-47-JS03 Chemical Structure

CAS No. : 2561413-77-0

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Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO
ready for reconstitution
USD 453 In-stock
Solution
10 mM * 1 mL in DMSO USD 453 In-stock
Solid
5 mg USD 400 In-stock
10 mg USD 680 In-stock
25 mg USD 1350 In-stock
50 mg USD 2200 In-stock
100 mg USD 3400 In-stock
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Customer Review

Based on 1 publication(s) in Google Scholar

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  • Biological Activity

  • Purity & Documentation

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Description

WF-47-JS03 is a potent and selective RET kinase inhibitor with IC50s of 1.7 nM and 5.3 nM for KIF5B-RET transfected Ba/F3 cells and CCDC6-RET transfected LC-2/ad lung cancer cells, respectively. WF-47-JS03 demonstrates >500-fold selectivity against kinase insert domain receptor (KDR). Effective brain penetration[1].

Cellular Effect
Cell Line Type Value Description References
BaF3 IC50
0.0017 μM
Compound: 1; WF-47-JS03
Inhibition of KIF5B-RET (unknown origin) transfected in mouse Ba/F3 cells assessed as reduction in cell viability incubated for 48 hrs by brightglo-luciferase reporter gene assay
Inhibition of KIF5B-RET (unknown origin) transfected in mouse Ba/F3 cells assessed as reduction in cell viability incubated for 48 hrs by brightglo-luciferase reporter gene assay
[PMID: 32292564]
BaF3 IC50
0.99 μM
Compound: 1; WF-47-JS03
Inhibition of TEL/KDR (unknown origin) transfected in mouse Ba/F3 cells assessed as reduction in cell viability incubated for 48 hrs by brightglo-luciferase reporter gene assay
Inhibition of TEL/KDR (unknown origin) transfected in mouse Ba/F3 cells assessed as reduction in cell viability incubated for 48 hrs by brightglo-luciferase reporter gene assay
[PMID: 32292564]
CHO IC50
1.2 μM
Compound: 1; WF-47-JS03
Displacement of [3H]-dofetilide from human ERG expressed in CHO cells incubated for 90 mins by microbeta scintillation counting method
Displacement of [3H]-dofetilide from human ERG expressed in CHO cells incubated for 90 mins by microbeta scintillation counting method
[PMID: 32292564]
LC-2-ad IC50
1.5 μM
Compound: 1; WF-47-JS03
Cytotoxicity against human LC2/ad cells assessed as reduction in cell viability incubated for 6 days by CellTiter Glo assay
Cytotoxicity against human LC2/ad cells assessed as reduction in cell viability incubated for 6 days by CellTiter Glo assay
[PMID: 32292564]
In Vitro

WF-47-JS03 inhibits Tel-KDR transfected Ba/F3 cells and Ba/F3 wild-type cell lines with IC50s of 0.99 and 1.5 μM, respectively[1].

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

In Vivo

WF-47-JS03 significantly inhibits tumor growth in RIE KIF5B-RET xenograft mice and is well tolerated at 1, 3, and 10 mg/kg in the 10 day study[1].

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

Animal Model: Female 6-8 week old Harlan Foxn1 nude mice with RIE-RET-KIF5B transgenic cell line
Dosage: 1, 3, 10 mg/kg
Administration: Dosed orally, 1x daily for 10 days
Result: Inhibited tumor growth in RIE KIF5B-RET xenograft mice.
Molecular Weight

514.66

Formula

C30H38N6O2

CAS No.
Appearance

Solid

Color

White to off-white

SMILES

NC(N1C(N=C2NC3CC(C)(C)N(C)C(C)(C)C3)=C(C4=CC(OC)=C(OC)C=C4)C=N1)=C2C5=CC=CC=C5

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 : 62.5 mg/mL (121.44 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 1.9430 mL 9.7152 mL 19.4303 mL
5 mM 0.3886 mL 1.9430 mL 3.8861 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)

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Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

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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: ≥ 2.08 mg/mL (4.04 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 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: ≥ 2.08 mg/mL (4.04 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.08 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 (20.8 mg/mL) to 900 μL Corn oil, and mix evenly.

In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:

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(per animal)

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Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
%
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+
%
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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: 99.63%

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 1.9430 mL 9.7152 mL 19.4303 mL 48.5758 mL
5 mM 0.3886 mL 1.9430 mL 3.8861 mL 9.7152 mL
10 mM 0.1943 mL 0.9715 mL 1.9430 mL 4.8576 mL
15 mM 0.1295 mL 0.6477 mL 1.2954 mL 3.2384 mL
20 mM 0.0972 mL 0.4858 mL 0.9715 mL 2.4288 mL
25 mM 0.0777 mL 0.3886 mL 0.7772 mL 1.9430 mL
30 mM 0.0648 mL 0.3238 mL 0.6477 mL 1.6192 mL
40 mM 0.0486 mL 0.2429 mL 0.4858 mL 1.2144 mL
50 mM 0.0389 mL 0.1943 mL 0.3886 mL 0.9715 mL
60 mM 0.0324 mL 0.1619 mL 0.3238 mL 0.8096 mL
80 mM 0.0243 mL 0.1214 mL 0.2429 mL 0.6072 mL
100 mM 0.0194 mL 0.0972 mL 0.1943 mL 0.4858 mL
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WF-47-JS03 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.

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WF-47-JS03
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