2. Protein Tyrosine Kinase/RTK
  3. Syk
  4. R112

R112 is a fast and reversible inhibitor of spleen tyrosine kinase (Syk) kinase. R112 inhibits Syk kinase activity with an IC50 value of 226 nM and a Ki value of 96 nM. R112 inhibits IgE-FcεRI signaling pathway. R112 can be used for the research of allergic rhinitis.

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

R112 Chemical Structure

R112 Chemical Structure

CAS No. : 575474-82-7

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10 mM * 1 mL in DMSO
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Based on 1 publication(s) in Google Scholar

R112 Related Antibodies

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  • Biological Activity

  • Purity & Documentation

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Description

R112 is a fast and reversible inhibitor of spleen tyrosine kinase (Syk) kinase. R112 inhibits Syk kinase activity with an IC50 value of 226 nM and a Ki value of 96 nM. R112 inhibits IgE-FcεRI signaling pathway. R112 can be used for the research of allergic rhinitis[1].

IC50 & Target

IC50: 226 nM (Syk kinase)[1]
In Vitro

R112 (0.001-10 μM; 1 h) dose-dependently inhibits anti-IgE-mediated tryptase release and histamine release with EC50s of 0.353 and 0.28 μM, inhibits histamine release by basophils stimulated with an EC50 value of 0.49 μM, inhibits secretion of LTC4, TNF-α, GM-CSF and IL-8 with EC50s of 0.115, 2.01, 1.58 and 1.75 μM, respectively[1].
R112 (0-10 μM; 40 min) inhibits Syk target LAT (Y191) phosphorylation[1].

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

R112 Related Antibodies

Western Blot Analysis[1]

Cell Line: Human mast cells
Concentration: 0.4, 2 and 10 μM
Incubation Time: 40 min
Result: Inhibited phosphorylation of the Syk target LAT (Y191) and also inhibited phosphorylation of Syk downstream events.
Molecular Weight

312.30

Formula

C16H13FN4O2
CAS No.
Appearance

Solid

Color

Light yellow to yellow

SMILES

FC1=CN=C(NC2=CC(O)=CC=C2)N=C1NC3=CC(O)=CC=C3
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 : 55 mg/mL (176.11 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 3.2020 mL 16.0102 mL 32.0205 mL
5 mM 0.6404 mL 3.2020 mL 6.4041 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: ≥ 2.75 mg/mL (8.81 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.75 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (27.5 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: ≥ 2.75 mg/mL (8.81 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.75 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (27.5 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:

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(per animal)

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Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
%
DMSO +
% 
+
%
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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 3.2020 mL 16.0102 mL 32.0205 mL 80.0512 mL
5 mM 0.6404 mL 3.2020 mL 6.4041 mL 16.0102 mL
10 mM 0.3202 mL 1.6010 mL 3.2020 mL 8.0051 mL
15 mM 0.2135 mL 1.0673 mL 2.1347 mL 5.3367 mL
20 mM 0.1601 mL 0.8005 mL 1.6010 mL 4.0026 mL
25 mM 0.1281 mL 0.6404 mL 1.2808 mL 3.2020 mL
30 mM 0.1067 mL 0.5337 mL 1.0673 mL 2.6684 mL
40 mM 0.0801 mL 0.4003 mL 0.8005 mL 2.0013 mL
50 mM 0.0640 mL 0.3202 mL 0.6404 mL 1.6010 mL
60 mM 0.0534 mL 0.2668 mL 0.5337 mL 1.3342 mL
80 mM 0.0400 mL 0.2001 mL 0.4003 mL 1.0006 mL
100 mM 0.0320 mL 0.1601 mL 0.3202 mL 0.8005 mL
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R112 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:

R112575474-82-7R 112R-112SykSpleen tyrosine kinasefastreversibleallergic rhinitishistaminetryptasebasophilLTC4TNF-αGM-CSF IL-8phosphorylationInhibitorinhibitorinhibit

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