2. Protein Tyrosine Kinase/RTK
  3. Src FGFR PDGFR
  4. PP58

PP58 is a pyrido[2,3-d]pyrimidine-based compound that inhibits PDGFR, FGFR and Src family activities with nanomolar IC50 values.

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

PP58 Chemical Structure

PP58 Chemical Structure

CAS No. : 212391-58-7

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10 mM * 1 mL in DMSO
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10 mM * 1 mL in DMSO USD 126 In-stock
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10 mg USD 180 In-stock
50 mg USD 490 In-stock
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Customer Review

Based on 1 publication(s) in Google Scholar

PP58 Related Antibodies

Top Publications Citing Use of Products

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PDGFR PDGFRβ PDGFRα

  • Biological Activity

  • Protocol

  • Purity & Documentation

  • References

  • Customer Review

Description

PP58 is a pyrido[2,3-d]pyrimidine-based compound that inhibits PDGFR, FGFR and Src family activities with nanomolar IC50 values.

IC50 & Target[1]

PDGFR

 

In Vitro

PP58 inhibits Src with a subnanomolar IC50 value in the assays. PP58 behaves as a titration reagent at higher Src protein concentrations. As analyzed by immunoblotting with specific antiserum, the PP58 matrix specifically depletes Src from total lysate, whereas binding to the PP58 beads is prevented when free inhibitor is included. The ectopically expressed FGFR1 receptor tyrosine kinase is specifically retained on PP58 beads. PP58 matrix could be a novel affinity reagent for the purification of cellular pyrido[2,3-d]pyrimidine inhibitor targets. PP58 affinity chromatography leads to the identification of protein kinases belonging to various different groups and families, indicating that the pyrido[2,3-d]pyrimidine inhibitor is not selective for a set of phylogenetically related members of the human kinome. The Ki values of PP58 for p38α and JNK2 are 3.8±1.9 nM and 0.32±0.04 μM, respectively. PP58 affinity matrix also serves as an efficient purification reagent for a variety of protein kinases, which lack this structural feature and have much lower affinities for the pyrido[2,3-d]pyrimidine inhibitor PP58. PP58 inhibits anisomycin activated p38 in a dose-dependent manner with an IC50 below 10 nM. LPS-stimulated TNF-α production is potently inhibited by PP58 with a cellular IC50 value of around 3 nM[1]. The T341M mutation abrogates the sensitivity to PP58 inhibition by increasing the cellular IC50 value of about 10 nM by more than 1000-fold. The cellular wild-type FGFR1 activity is potently inhibited by low nanomolar concentrations of PP58, whereas dramatic resistance formation is detected for the FGFR1-V561M mutant. PP58 inhibits CSK activity with an IC50 value of around 100 nM[2].

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

PP58 Related Antibodies
In Vivo

PP58 can exhibit some degree of selectivity at low nanomolar concentrations in vivo[1].

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

456.32

Formula

C22H19Cl2N5O2
CAS No.
Appearance

Solid

Color

Light yellow to yellow

SMILES

NCCOC1=CC=C(NC(N=C2N3C)=NC=C2C=C(C4=C(Cl)C=CC=C4Cl)C3=O)C=C1
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 : 62.5 mg/mL (136.97 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 2.1914 mL 10.9572 mL 21.9144 mL
5 mM 0.4383 mL 2.1914 mL 4.3829 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
×
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    90% (20% SBE-β-CD in Saline)

    Solubility: 2.08 mg/mL (4.56 mM); Suspended solution; Need ultrasonic

    This protocol yields a suspended solution of 2.08 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 (20.8 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

Purity: 99.75%

COA (248 KB) RP-HPLC (244 KB)

Handling Instructions (2659 KB)
References
Kinase Assay
[1]

MEK1 and Aurora A activities are tested at 37 °C in a total volume of 30 μL. The kinases are assayed using 50 μM ATP and 1 μCi [γ-32P]ATP in the presence of different PP58 concentrations. Kinase substrate proteins included are 0.25 mg/mL inactive GST-ERK2 for MEK1 and 0.025 mg/mL kemptide for Aurora A, respectively. Reactions are stopped by addition of SDS sample buffer. Determination of IC50 [0–100%] values is performed using GraFit software[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
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 2.1914 mL 10.9572 mL 21.9144 mL 54.7861 mL
5 mM 0.4383 mL 2.1914 mL 4.3829 mL 10.9572 mL
10 mM 0.2191 mL 1.0957 mL 2.1914 mL 5.4786 mL
15 mM 0.1461 mL 0.7305 mL 1.4610 mL 3.6524 mL
20 mM 0.1096 mL 0.5479 mL 1.0957 mL 2.7393 mL
25 mM 0.0877 mL 0.4383 mL 0.8766 mL 2.1914 mL
30 mM 0.0730 mL 0.3652 mL 0.7305 mL 1.8262 mL
40 mM 0.0548 mL 0.2739 mL 0.5479 mL 1.3697 mL
50 mM 0.0438 mL 0.2191 mL 0.4383 mL 1.0957 mL
60 mM 0.0365 mL 0.1826 mL 0.3652 mL 0.9131 mL
80 mM 0.0274 mL 0.1370 mL 0.2739 mL 0.6848 mL
100 mM 0.0219 mL 0.1096 mL 0.2191 mL 0.5479 mL
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PP58 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:

PP58212391-58-7PP 58PP-58SrcFGFRPDGFRFibroblast growth factor receptorPlatelet-derived growth factor receptorInhibitorinhibitorinhibit

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