1. Protein Tyrosine Kinase/RTK
    JAK/STAT Signaling
  2. EGFR
    Src
  3. Pelitinib

Pelitinib (Synonyms: EKB-569; WAY-EKB 569)

Cat. No.: HY-32718 Purity: 98.10%
Handling Instructions

Pelitinib (EKB-569;WAY-EKB 569) is an irreversible inhibitor of EGFR with an IC50 of 38.5 nM; also slightly inhibits Src, MEK/ERK and ErbB2 with IC50s of 282, 800, and 1255 nM, respectively.

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

Pelitinib Chemical Structure

Pelitinib Chemical Structure

CAS No. : 257933-82-7

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10 mM * 1 mL in DMSO USD 55 In-stock
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100 mg USD 220 In-stock
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Customer Review

Based on 2 publication(s) in Google Scholar

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Description

Pelitinib (EKB-569;WAY-EKB 569) is an irreversible inhibitor of EGFR with an IC50 of 38.5 nM; also slightly inhibits Src, MEK/ERK and ErbB2 with IC50s of 282, 800, and 1255 nM, respectively.

IC50 & Target[1]

EGFR

38.5 nM (IC50)

In Vitro

Pelitini has much greater inhibitory activity against the EGFR kinase than against Src, MEK/ERK, Cdk4, c-Met, Raf and ErbB2, for example, the IC50 for EGFR is 32-fold lower than the IC50 for the closely related ErbB2. Pelitinib results in a dramatic reduction in EGFR phosphorylation but no change in the total amount of EGFR protein. It requires at least 10-fold more drug to equivalently inhibit ErbB2 phosphorylation in similar assays, and EKB-569 does not block phosphorylation of another receptor tyrosine kinase (c-Met) assessed in the same manner[1]. EKB-569 is a potent inhibitor of proliferation in NHEK, A431, and MDA-468 cells (IC50=61, 125, and 260 nM, respectively) but not MCF-7 cells (IC50=3600 nM). EKB-569 is also a potent inhibitor of EGF-induced phosphorylated EGF-R (pEGF-R) in A431 and NHEK cells (IC50=20-80 nM)[1].

In Vivo

A single oral dose of 10 mg/kg EKB-569 inhibits EGFR phosphorylation in A431 xenografts within 60 minutes. Twenty-four hours later, EGFR activity is still inhibited by over 50% by this single oral dose. The half-life of EKB-569 in mouse plasma is about 2 hours[1].

Clinical Trial
Molecular Weight

467.92

Formula

C₂₄H₂₃ClFN₅O₂

CAS No.

257933-82-7

SMILES

N#CC1=C(C2=CC(NC(/C=C/CN(C)C)=O)=C(OCC)C=C2N=C1)NC3=CC(Cl)=C(C=C3)F

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 : 25 mg/mL (53.43 mM; Need ultrasonic)

H2O : < 0.1 mg/mL (insoluble)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 2.1371 mL 10.6856 mL 21.3712 mL
5 mM 0.4274 mL 2.1371 mL 4.2742 mL
10 mM 0.2137 mL 1.0686 mL 2.1371 mL
*Please refer to the solubility information to select the appropriate solvent.
In Vivo:
  • 1.

    Add each solvent one by one:  10% DMSO    40% PEG300    5% Tween-80    45% saline

    Solubility: ≥ 2.5 mg/mL (5.34 mM); Clear solution

  • 2.

    Add each solvent one by one:  10% DMSO    90% (20% SBE-β-CD in saline)

    Solubility: 2.5 mg/mL (5.34 mM); Suspended solution; Need ultrasonic

*All of the co-solvents are provided by MCE.
References
Cell Assay
[1]

For experiments using cells in culture, A431 cells or 3T3/c-erbB-2 cells over-expressing c-erbB2 are are treated with various concentrations of EKB-569 for 2.75 h before co-incubation with 100 ng/mL EGF (A431 cells) or no growth factor (3T3/c-erbB-2 cells) for 0.25 h. Cells are ished twice with cold phosphate-buffered saline (PBS) before adding to lysis buffer for 20 min on ice, before immunoprecipitation and SDS–PAGE-immunoblotting[1].

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

Animal Administration
[1]

Mice: For in vivo experiments, athymic nu/nu female mice are implanted subcutaneously with 5×106 A431 tumor cells. When tumors reach a mass of 200-300 mg, animals are treated with a single dose of 10 mg/kg EKB-569 in pH 2.0 water per gavage. Tumors from control and drug-treated animals are excised and minced into 1-mm pieces for anlysis[1].

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

References

Purity: 98.10%

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Keywords:

PelitinibEKB-569WAY-EKB 569EKB569EKB 569EGFRSrcEpidermal growth factor receptorErbB-1HER1Inhibitorinhibitorinhibit

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