Catalog No.S8685

For research use only.

AS1517499 is a novel and potent STAT6 inhibitor with an IC50 value of 21 nM.

AS1517499 Chemical Structure

CAS No. 919486-40-1

Selleck's AS1517499 has been cited by 13 publications

Purity & Quality Control

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Biological Activity

Description AS1517499 is a novel and potent STAT6 inhibitor with an IC50 value of 21 nM.
STAT6 [1]
(Cell-free assay)
21 nM
In vitro

AS1517499 inhibit IL-4-induced Th2 differentiation of mouse spleen T cells, but has no influence on Th1 differentiation induced by IL-12[1]. AS1517499 is able to prevent the IL-4-activated STAT6-mediated increase of the clonogenic potential of primary PCa cells. At a dose of 300 nM, AS1517499 decreases the clonogenic potential of primary basal PCa cells[3].

Methods Test Index PMID
Western blot p-STAT6 / STAT6 31363052
Immunofluorescence MUC5AC 28931396
In vivo In vivo treatment with AS1517499 ameliorates the antigen-induced bronchial smooth muscle (BSM) hyperresponsiveness by inhibiting the RhoA up-regulation in BSMs and, at least in part, by reducing the IL-13 production in the airways in mice[2]. AS1517499 reduces preventive effects of apoptotic cell instillation on bleomycin-induced lung fibrosis by suppressing PPARγ[4].

Protocol (from reference)

Cell Research:


  • Cell lines: Normal human BSM cells
  • Concentrations: 100 nM
  • Incubation Time: 30 min
  • Method:

    Cells are maintained in SmBM medium supplemented with 5% fetal bovine serum, 0.5 ng/ml human epidermal growth factor (hEGF), 5 mg/ml insulin, 2 ng/ml human fibroblast growth factor-basic (hFGF-b), 50 mg/ml gentamicin, and 50 ng/ml amphotericin B. Cells are maintained at 37℃ in a humidified atmosphere (5% CO2), fed every 48 to 72 hours, and passaged when cells reached 90 to 95% confluence. Then the hBSMCs (passages 7-9) are seeded in 6-well plates and 8-well chamber slides at a density of 3,500 cells/cm2 and, when 80 to 85% confluence is observed, cells are cultured without serum for 24 hours before addition of recombinant human IL-13. AS1517499, or its vehicle (0.3% DMSO) is treated 30 minutes before the addition of IL-13 (100 ng/ml). In some experiments, AS1517499 is treated 0 (co-incubation), 3, or 12 hours after the addition of IL-13. In another series of experiments, a selective Rho-kinase inhibitor Y-27632 or its vehicle (0.3% DMSO) is also applied 15 minutes before the IL-13 application. At the indicated time after the IL-13 treatment, cells are washed with PBS, immediately collected, and disrupted with 1×SDS sample buffer (250 μl/well), and used for Western blot analyses.

Animal Research:


  • Animal Models: A murine model of allergic bronchial asthma (Male BALB/c mice)
  • Dosages: 1 or 10 mg/kg/d
  • Administration: i.p.

Solubility (25°C)

In vitro

DMSO 79 mg/mL
(198.56 mM)
Ethanol 36 mg/mL
(90.48 mM)
Water Insoluble

Chemical Information

Molecular Weight 397.86


CAS No. 919486-40-1
Storage 3 years -20°C powder
2 years -80°C in solvent
Smiles C1=CC=C(C=C1)CNC2=NC(=NC=C2C(=O)N)NCCC3=CC(=C(C=C3)O)Cl

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Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

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Tech Support

Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.

Handling Instructions

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