2. MAPK/ERK Pathway
  3. p38 MAPK
  4. Talmapimod

Talmapimod  (Synonyms: SCIO-469)

Cat. No.: HY-10406 Purity: 98.97%
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Talmapimod (SCIO-469) is an orally active, selective, and ATP-competitive p38α inhibitor with an IC50 of 9 nM. Talmapimod shows about 10-fold selectivity over p38β, and at least 2000-fold selectivity over a panel of 20 other kinases, including other MAPKs.

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

Talmapimod Chemical Structure

Talmapimod Chemical Structure

CAS No. : 309913-83-5

Size Price Stock Quantity
Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO
ready for reconstitution
 USD 163 In-stock
Solution
10 mM * 1 mL in DMSO USD 163 In-stock
Solid
1 mg USD 41 In-stock
5 mg USD 144 In-stock
10 mg USD 228 In-stock
25 mg USD 480 In-stock
50 mg USD 804 In-stock
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Based on 3 publication(s) in Google Scholar

Other Forms of Talmapimod:

Talmapimod Related Antibodies

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p38 MAPK p38α p38β MAPK13 p38δ p38γ

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Description

Talmapimod (SCIO-469) is an orally active, selective, and ATP-competitive p38α inhibitor with an IC50 of 9 nM. Talmapimod shows about 10-fold selectivity over p38β, and at least 2000-fold selectivity over a panel of 20 other kinases, including other MAPKs[1][2][3].

IC50 & Target[1]

p38α

9 nM (IC50)

p38β

90 nM (IC50)

In Vitro

Talmapimod (SCIO-469) (100-200 nM; 1 hour) inhibits phosphorylation of p38 MAPK in MM cells[1].
Talmapimod inhibits LPS-induced TNF-a production in human whole blood[2].
Talmapimod decreases constitutive p38alpha MAPK phosphorylation of both 5T2MM and 5T33MM cells[3].

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

Talmapimod Related Antibodies

Western Blot Analysis[1]

Cell Line: MM.1S, U266, RPMI8226, MM.1R, and RPMI-Dox40 cell lines
Concentration: 100, 200 nM
Incubation Time: 1 hour
Result: Strongly inhibits phosphorylation of p38 MAPK.
In Vivo

Targeting p38α MAPK with Talmapimod (SCIO-469) decreases myeloma burden in addition to preventing the development of myeloma bone disease[2].
Talmapimod inhibits multiple myeloma growth and prevents bone disease in the 5T2MM and 5T33MM models[3].
Talmapimod (10-90 mg/kg; p.o.; twice daily orally for 14 days) dose-dependently reduced tumor growth and also dose-dependently reduced weight of the palpable tumors at termination[4].

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

Animal Model: Six-week-old male triple immune-deficient BNX mice (RPMI-8226 MM palpable tumors)[4]
Dosage: P.o.; twice daily orally for 14 days
Administration: 10, 30, 90 mg/kg
Result: Dose-dependently reduced tumor growth.
Clinical Trial
Molecular Weight

513.00

Formula

C27H30ClFN4O3
CAS No.
Appearance

Solid

Color

Pink to red

SMILES

O=C(N(C)C)C(C1=CN(C)C2=C1C=C(C(N3[C@H](C)CN(CC4=CC=C(F)C=C4)[C@@H](C)C3)=O)C(Cl)=C2)=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 : ≥ 100 mg/mL (194.93 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 1.9493 mL 9.7466 mL 19.4932 mL
5 mM 0.3899 mL 1.9493 mL 3.8986 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.

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Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Mass
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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 (4.87 mM); Suspended solution; Need ultrasonic

    This protocol yields a suspended solution of 2.5 mg/mL. Suspended solution can be used for oral and intraperitoneal injection.

    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: ≥ 2.5 mg/mL (4.87 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 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
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 1.9493 mL 9.7466 mL 19.4932 mL 48.7329 mL
5 mM 0.3899 mL 1.9493 mL 3.8986 mL 9.7466 mL
10 mM 0.1949 mL 0.9747 mL 1.9493 mL 4.8733 mL
15 mM 0.1300 mL 0.6498 mL 1.2995 mL 3.2489 mL
20 mM 0.0975 mL 0.4873 mL 0.9747 mL 2.4366 mL
25 mM 0.0780 mL 0.3899 mL 0.7797 mL 1.9493 mL
30 mM 0.0650 mL 0.3249 mL 0.6498 mL 1.6244 mL
40 mM 0.0487 mL 0.2437 mL 0.4873 mL 1.2183 mL
50 mM 0.0390 mL 0.1949 mL 0.3899 mL 0.9747 mL
60 mM 0.0325 mL 0.1624 mL 0.3249 mL 0.8122 mL
80 mM 0.0244 mL 0.1218 mL 0.2437 mL 0.6092 mL
100 mM 0.0195 mL 0.0975 mL 0.1949 mL 0.4873 mL
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Talmapimod 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:

Talmapimod309913-83-5SCIO-469SCIO469SCIO 469p38 MAPKmultiplemyelomacellsHsp27tumorcytotoxicityphosphorylationInhibitorinhibitorinhibit

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