1. MAPK/ERK Pathway
  2. p38 MAPK
  3. p38α inhibitor 2

p38α inhibitor 2 is a highly potent and selective p38α MAPK inhibitor, with a pIC50 of 9.6. p38α inhibitor 2 inhibits the hERG ion channel (IC50=27 μM) and shows a promising selectivity profile when tested in a panel of 51 other protein kinases (<30% inhibition at 10 μM concentration) and a panel of 141 other biological targets.

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

p38α inhibitor 2 Chemical Structure

p38α inhibitor 2 Chemical Structure

CAS No. : 1095003-80-7

Size Price Stock Quantity
Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO
ready for reconstitution
USD 366 In-stock
Solution
10 mM * 1 mL in DMSO USD 366 In-stock
Solid
5 mg USD 350 In-stock
10 mg USD 580 In-stock
25 mg USD 1100 In-stock
50 mg USD 1700 In-stock
100 mg USD 2500 In-stock
200 mg   Get quote  
500 mg   Get quote  

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Based on 1 publication(s) in Google Scholar

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Description

p38α inhibitor 2 is a highly potent and selective p38α MAPK inhibitor, with a pIC50 of 9.6. p38α inhibitor 2 inhibits the hERG ion channel (IC50=27 μM) and shows a promising selectivity profile when tested in a panel of 51 other protein kinases (<30% inhibition at 10 μM concentration) and a panel of 141 other biological targets[1].

IC50 & Target[1]

p38α MAPK

9.6 (pIC50)

Molecular Weight

475.58

Formula

C27H33N5O3

CAS No.
Appearance

Solid

Color

Off-white to light yellow

SMILES

O=C(NC1CC1)C2=CC=C(C)C(N3C(C(NC(C4=CC=CC=C4OCCNC)(C)C)=NC=C3)=O)=C2

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 : 250 mg/mL (525.67 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 2.1027 mL 10.5135 mL 21.0270 mL
5 mM 0.4205 mL 2.1027 mL 4.2054 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    40% PEG300    5% Tween-80    45% Saline

    Solubility: ≥ 6.25 mg/mL (13.14 mM); Clear solution

    This protocol yields a clear solution of ≥ 6.25 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (62.5 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: 6.25 mg/mL (13.14 mM); Suspended solution; Need ultrasonic

    This protocol yields a suspended solution of 6.25 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 (62.5 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, 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 2.1027 mL 10.5135 mL 21.0270 mL 52.5674 mL
5 mM 0.4205 mL 2.1027 mL 4.2054 mL 10.5135 mL
10 mM 0.2103 mL 1.0513 mL 2.1027 mL 5.2567 mL
15 mM 0.1402 mL 0.7009 mL 1.4018 mL 3.5045 mL
20 mM 0.1051 mL 0.5257 mL 1.0513 mL 2.6284 mL
25 mM 0.0841 mL 0.4205 mL 0.8411 mL 2.1027 mL
30 mM 0.0701 mL 0.3504 mL 0.7009 mL 1.7522 mL
40 mM 0.0526 mL 0.2628 mL 0.5257 mL 1.3142 mL
50 mM 0.0421 mL 0.2103 mL 0.4205 mL 1.0513 mL
60 mM 0.0350 mL 0.1752 mL 0.3504 mL 0.8761 mL
80 mM 0.0263 mL 0.1314 mL 0.2628 mL 0.6571 mL
100 mM 0.0210 mL 0.1051 mL 0.2103 mL 0.5257 mL
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p38α inhibitor 2 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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p38α inhibitor 2
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