1. Protein Tyrosine Kinase/RTK
  2. FAK
  3. PF-562271

PF-562271  (Synonyms: VS-6062)

Cat. No.: HY-10459 Purity: 99.68%
COA Handling Instructions

PF-562271 est un inhibiteur de kinase FAK et Pyk2 qui est puissant, ATP-compétitif et réversible avec IC50s de 1,5 nM et 13 nM, respectivement.

PF-562271 (VS-6062) is a potent, ATP-competitive and reversible FAK and Pyk2 kinase inhibitor with IC50s of 1.5 nM and 13 nM, respectively.

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

PF-562271 Chemical Structure

PF-562271 Chemical Structure

CAS No. : 717907-75-0

Size Price Stock Quantity
10 mM * 1 mL in DMSO USD 177 In-stock
Solid + Solvent
10 mM * 1 mL
ready for reconstitution
USD 177 In-stock
5 mg USD 158 In-stock
10 mg USD 198 In-stock
50 mg USD 495 In-stock
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This product is a controlled substance and not for sale in your territory.

Customer Review

Based on 18 publication(s) in Google Scholar

Other Forms of PF-562271:

Top Publications Citing Use of Products

    PF-562271 purchased from MCE. Usage Cited in: Cell Death Dis. 2023 Feb 24;14(2):157.  [Abstract]

    PF-562271 (250 nM; 6 h) largely inhibits Akt-S6 phosphorylation in OE-MXRA5 priPC-1 cells.

    PF-562271 purchased from MCE. Usage Cited in: Int J Cancer. 2015 Oct 1;137(7):1549-59.  [Abstract]

    786-O (a) and Caki-1 (b) are treated for 24 and 48h with increasing concentrations of PF-562,271 and adherent cells were counted. Cell lysates are evaluated through immunoblotting for total FAK following treatment for 24h.

    PF-562271 purchased from MCE. Usage Cited in: Practical Oncology Journal. 2015, 29(5): 444-449.

    Effects and mechanism of Biglycan and FAK signaling pathway on the invasion and metastasis of colon cancer cells.

    PF-562271 purchased from MCE. Usage Cited in: Cancer Res. 2013 May 1;73(9):2873-83.  [Abstract]

    FAK inhibition downregulates the AKT/mTOR pathway and CAS activity. A, protein levels measured by Western immunoblotting for AKT/mTOR pathway proteins in A673 and TC32 cells serum-starved overnight, treated with PF-562271 for 6 hours, and then stimulated with IGF-1 for 2 hours. Vinculin is used as the loading control. B, Western immunoblots showing downregulation of phospho-CAS but not phospho-ERK in A673 and TC32 cells after treatment with PF-562271.
    • Biological Activity

    • Protocol

    • Purity & Documentation

    • References

    • Customer Review


    PF-562271 (VS-6062) is a potent, ATP-competitive and reversible FAK and Pyk2 kinase inhibitor with IC50s of 1.5 nM and 13 nM, respectively[1].

    IC50 & Target

    IC50: 1.5 nM (FAK), 13 nM (Pyk2), 30 nM (CDK2), 47 nM (CDK3), 58 nM (CDK1), 97 nM (CDK7), 97 nM (Flt3)[1]

    In Vitro

    PF-562271 (VS-6062) is shown to be a 30- to 120-nM inhibitor of CDK2/E, CDK5/p35, CDK1/B, and CDK3/E in recombinant enzyme assays, in cell-based assays evaluating the role of CDKs, a 48-hour exposure of 3.3 μM PF-562271 is required to alter cell cycle progression. PF-562271 is potent in an inducible cell-based assay measuring phospho-FAK with a IC50 of 5 nM[1].
    PF-562271, a selective inhibitor of both FAK and proline-rich tyrosine kinase 2 (PYK2), a FAK-related family member, on cell growth and colony formation in Ewing sarcoma cell lines. Seven cell lines are treated for 5 days with PF-562271 across a range of concentrations using 2-fold serial dilutions. Treatment with PF-562271 impaires cell viability in all cell lines, with an average IC50 of 2.4 μM after 3 days of treatment. TC32 and A673 are the 2 most sensitive cell lines, with IC50 concentrations of 2.1 and 1.7 μM, respectively[2].

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

    In Vivo

    PF-562271 inhibits FAK phosphorylation in vivo in a dose-dependent fashion (calculated EC50 of 93 ng/mL, total) after p.o. administration to tumor-bearing mice[1]. Rats that receive PF-562271 demonstrate a decrease in tumor growth after 2 weeks of treatment with signs of bone healing as evidenced by the deposition of new bone (cortical and cancellous) at sites previously damaged by the tumor[3].

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

    Molecular Weight






    CAS No.



    Room temperature in continental US; may vary elsewhere.

    Powder -20°C 3 years
    4°C 2 years
    In solvent -80°C 6 months
    -20°C 1 month
    Solvent & Solubility
    In Vitro: 

    DMSO : 66.67 mg/mL (131.37 mM; Need ultrasonic)

    Stock Solutions
    Concentration Solvent Mass 1 mg 5 mg 10 mg
    1 mM 1.9705 mL 9.8524 mL 19.7048 mL
    5 mM 0.3941 mL 1.9705 mL 3.9410 mL
    10 mM 0.1970 mL 0.9852 mL 1.9705 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: ≥ 1.67 mg/mL (3.29 mM); Clear solution

    • 2.

      Add each solvent one by one:  10% DMSO    90% corn oil

      Solubility: ≥ 1.67 mg/mL (3.29 mM); Clear solution

    *All of the co-solvents are available by MCE.
    Purity & Documentation

    Purity: 99.68%

    Cell Assay

    Ewing sarcoma cells are plated in 10-cm dishes, allowed to adhere for 24 hours, and then treated with PF-562271, PD0325901, or BMS-354825. ATP content is measured as a surrogate for cell number using the CellTiter-Glo Luminescent Cell Viability Assay. Luminescence readings are obtained using the FLUOstar Omega microplate reader. For experiments with small-molecule treatment, 1.25×103 Ewing sarcoma cells are seeded in each well and treated with a range of concentrations. IC50 values are calculated from ATP measurements obtained after 3 days of treatment using log-transformed, normalized data in GraphPad Prism 5.0. Cell lines are also treated with compound in 6-cm dishes, trypsinized, and counted by light microscopy using trypan blue exclusion. For experiments using shRNA-transduced cells, 1.25×103 cells are seeded per well into 384-well plates on day 3 posttransduction. ATP content is measured on days 3, 6, and 8 posttransduction[2].

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

    Animal Administration

    Athymic female mice (CD-1 Nu/Nu, ~20 grams) are used for all in vivo studies. Exponentially growing cells are trypsinized and resuspended in sterile PBS and inoculated s.c. (1×106 cells per mouse in 200 μL) into the right flank of mice. Animals bearing tumors of 150 mm3 in size are divided into groups receiving either vehicle (5% Gelucire) or PF-562,271 (diluted in vehicle), and dosed by p.o. gavage. Animal body weight and tumor measurements are obtained every 2 d. Tumor volume (mm3) is measured with Vernier calipers and calculated using the formula: length (mm)×width (mm)×width (mm)×0.5. Percent growth inhibition. For all tumor growth inhibition experiments, 8 to 10 mice per dose group are used. A Student's t test is used to determine the P value.
    Nude (Crl:NIH-rnu) female rats are used. PF-562271 is formulated for oral dosing using 0.5% methyl-cellulose. On the first day of dosing, rats receive a single dose of PF-562271 (10 mg/kg) by oral gavage. Based on the exposure levels at 1 hour after dosing, the dose is reduced to 5 mg/kg. From the second day onward, rats are dosed daily with 5 mg/kg by oral gavage for 28 days. Dosing is initiated 2 weeks after tumor inoculation and only after the presence of tumors is confirmed by radiography. The presence of the tested compound in serum is confirmed during the course of the study.

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

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    • 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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