1. Neuronal Signaling Protein Tyrosine Kinase/RTK Apoptosis
  2. Trk Receptor Apoptosis
  3. GW 441756

GW 441756 is a potent and specific nerve growth factor (NGF) receptor tyrosine kinases A (TrkA) inhibitor (IC50=2 nM), which eliminates the BmK NSPK-induced neurite outgrowth.

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

GW 441756 Chemical Structure

GW 441756 Chemical Structure

CAS No. : 504433-23-2

Size Price Stock Quantity
Solid + Solvent
10 mM * 1 mL in DMSO
ready for reconstitution
USD 72 In-stock
Solution
10 mM * 1 mL in DMSO USD 72 In-stock
Solid
5 mg USD 65 In-stock
10 mg USD 100 In-stock
25 mg USD 190 In-stock
50 mg USD 290 In-stock
100 mg USD 435 In-stock
200 mg   Get quote  
500 mg   Get quote  

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Based on 4 publication(s) in Google Scholar

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  • Biological Activity

  • Purity & Documentation

  • References

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Description

GW 441756 is a potent and specific nerve growth factor (NGF) receptor tyrosine kinases A (TrkA) inhibitor (IC50=2 nM), which eliminates the BmK NSPK-induced neurite outgrowth[1][2][3].

IC50 & Target[1]

TrkA

2 nM (IC50)

In Vitro

GW-441756 (1 µM; 48 hours; spinal cord neurons cells) abolishs BmK NSPK-induced neurite outgrowth[1].
GW-441756 (1 µM; 4 hours; PC12 cells) inhibits nerve growth factor induced neurite outgrowth[1].

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

Immunofluorescence[1]

Cell Line: Spinal cord neurons cells
Concentration: 1 µM
Incubation Time: 48 hours
Result: Abolished BmK NSPK-induced neurite outgrowth.
Molecular Weight

275.30

Formula

C17H13N3O

CAS No.
Appearance

Solid

SMILES

O=C1/C(C2=NC=CC=C2N1)=C\C3=CN(C)C4=C3C=CC=C4

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 : 17.5 mg/mL (63.57 mM; Need ultrasonic and warming; 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 3.6324 mL 18.1620 mL 36.3240 mL
5 mM 0.7265 mL 3.6324 mL 7.2648 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

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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: ≥ 2.08 mg/mL (7.56 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.
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: 99.95%

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 3.6324 mL 18.1620 mL 36.3240 mL 90.8100 mL
5 mM 0.7265 mL 3.6324 mL 7.2648 mL 18.1620 mL
10 mM 0.3632 mL 1.8162 mL 3.6324 mL 9.0810 mL
15 mM 0.2422 mL 1.2108 mL 2.4216 mL 6.0540 mL
20 mM 0.1816 mL 0.9081 mL 1.8162 mL 4.5405 mL
25 mM 0.1453 mL 0.7265 mL 1.4530 mL 3.6324 mL
30 mM 0.1211 mL 0.6054 mL 1.2108 mL 3.0270 mL
40 mM 0.0908 mL 0.4541 mL 0.9081 mL 2.2703 mL
50 mM 0.0726 mL 0.3632 mL 0.7265 mL 1.8162 mL
60 mM 0.0605 mL 0.3027 mL 0.6054 mL 1.5135 mL
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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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Product Name:
GW 441756
Cat. No.:
HY-18314
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