2. Epigenetics Stem Cell/Wnt Protein Tyrosine Kinase/RTK JAK/STAT Signaling
  3. JAK
  4. WHI-P97

WHI-P97 is a potent and selective JAK-3 inhibitor. WHI-P97 is effective in preventing the development allergic asthma in vivo.

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

WHI-P97 Chemical Structure

WHI-P97 Chemical Structure

CAS No. : 211555-05-4

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10 mM * 1 mL in DMSO USD 99 In-stock
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Based on 2 publication(s) in Google Scholar

WHI-P97 Related Antibodies

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Description

WHI-P97 is a potent and selective JAK-3 inhibitor. WHI-P97 is effective in preventing the development allergic asthma in vivo[1].

IC50 & Target[1]

JAK3

11 μM (IC50)

In Vitro

WHI-P97 inhibits the translocation of 5-lipoxygenase (5-LO) from the nucleoplasm to the nuclear membrane and consequently 5-LO-dependent leukotriene (LT) synthesis after IgE receptor/FcεRI crosslinking by >90% at low micromolar concentrations[1].
WHI-P97 (30 μM) stantially reduces the IgE/antigen-induced LTC4 release from mast cells[1].

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

WHI-P97 Related Antibodies
In Vivo

WHI-P97 is very well tolerated in mice, with no signs of toxicity at dose levels ranging from 5 μg/kg to 50 mg/kg, and LD10 is not reached at a 50 mg/kg dose level when administered as a single i.p. or i.v. bolus dose[1].
WHI-P97 (i.v. injection; 40 mg/kg; single dose) has an elimination half-life (t1/2) of 58.9 min and systemic clearance (CL) of 891 ml/h/kg in CD-1 mice and a t1/2 of 84.2 min and CL of 1513 ml/h/kg in BALB/c mice. The values for AUC and Cmax are 107.3 μM and 296.7 μM, respectively, in CD-1 mice. And the IC50 values are 58.4 μM and 212.7 μM, respectively, in BALB/c mice. The large volume of distribution are 322 ml/kg in CD-1 mice and 415 ml/kg in BALB/c mice[1].
WHI-P97 (intraperitoneal injection; 40 mg/kg; 24 days) prevents ovalbumin-sensitized mice the development of airway hyper-responsiveness to methacholine in a dose-dependent fashion in mice. WHI-P97 inhibits the eosinophil recruitment to the airway lumen after the ovalbumin challenge in a dose-dependent fashion[1].

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

Animal Model: BALB/c mouse model of allergic asthma[1]
Dosage: 40 mg/kg
Administration: intraperitoneal injection; 24 days
Result: Showed promising biological activity in a mouse model of allergic asthma at nontoxic dose levels.
Molecular Weight

455.10

Formula

C16H13Br2N3O3
CAS No.
Appearance

Solid

Color

White to gray

SMILES

BrC1=CC(NC2=NC=NC3=CC(OC)=C(OC)C=C32)=CC(Br)=C1O
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 : 3.33 mg/mL (7.32 mM; ultrasonic and warming and heat to 80°C; 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 2.1973 mL 10.9866 mL 21.9732 mL
5 mM 0.4395 mL 2.1973 mL 4.3946 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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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: ≥ 0.59 mg/mL (1.30 mM); Clear solution

    This protocol yields a clear solution of ≥ 0.59 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (5.9 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: ≥ 0.59 mg/mL (1.30 mM); Clear solution

    This protocol yields a clear solution of ≥ 0.59 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 (5.9 mg/mL) to 900 μL Corn oil, and mix evenly.

For the following dissolution methods, please prepare the working solution directly. It is recommended to prepare fresh solutions and use them promptly within a short period of time.
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:  50% PEG300    50% Saline

    Solubility: 8 mg/mL (17.58 mM); Suspended solution; Need ultrasonic

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

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mg/kg

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(per animal)

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Dosing volume
(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:
%
DMSO +
% 
+
%
Tween-80 +
%
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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: 99.70%

SDS (393 KB)

COA (251 KB) LCMS (93 KB)

Handling Instructions (2659 KB)
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 2.1973 mL 10.9866 mL 21.9732 mL 54.9330 mL
5 mM 0.4395 mL 2.1973 mL 4.3946 mL 10.9866 mL
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WHI-P97 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:

WHI-P97211555-05-4JAKJanus kinaseovalbumin-sensitizedairwayovalbumin challengeeosinophil recruitmentInhibitorinhibitorinhibit

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