Date published: 2026-4-24

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VER-49009 (CAS 940289-57-6)

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Alternate Names:
3-(5-chloro-2,4-dihydroxyphenyl)-N-ethyl-4-(4-methoxyphenyl)-1H-pyrazole-5-carboxamide
Application:
VER-49009 is an inhibitor of Hsp90
CAS Number:
940289-57-6
Molecular Weight:
387.8
Molecular Formula:
C19H18ClN3O4
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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The heat shock proteins (Hsps) act as molecular chaperones. Hsp90 is an abundant protein with roles in protein folding, cell signaling, and cancer. VER-49009 is a pyrazole compound that inhibits Hsp90 with an IC50 value of 47 nM. It produces a cellular antiproliferative GI50 value of 685 nM when tested against a human cancer cell line panel. Consistent with inhibition of Hsp90, VER-49009 induces the expression of Hsp27 and Hsp72 while reducing the client proteins C-RAF, B-RAF, survivin, and PRMT5, causing cell cycle arrest and apoptosis.


VER-49009 (CAS 940289-57-6) References

  1. Novel, potent small-molecule inhibitors of the molecular chaperone Hsp90 discovered through structure-based design.  |  Dymock, BW., et al. 2005. J Med Chem. 48: 4212-5. PMID: 15974572
  2. 4-Amino derivatives of the Hsp90 inhibitor CCT018159.  |  Barril, X., et al. 2006. Bioorg Med Chem Lett. 16: 2543-8. PMID: 16480864
  3. Inhibition of the heat shock protein 90 molecular chaperone in vitro and in vivo by novel, synthetic, potent resorcinylic pyrazole/isoxazole amide analogues.  |  Sharp, SY., et al. 2007. Mol Cancer Ther. 6: 1198-211. PMID: 17431102
  4. Silencing the cochaperone CDC37 destabilizes kinase clients and sensitizes cancer cells to HSP90 inhibitors.  |  Smith, JR., et al. 2009. Oncogene. 28: 157-69. PMID: 18931700
  5. Acquired resistance to 17-allylamino-17-demethoxygeldanamycin (17-AAG, tanespimycin) in glioblastoma cells.  |  Gaspar, N., et al. 2009. Cancer Res. 69: 1966-75. PMID: 19244114
  6. Inhibition of hepatic stellate cell proliferation by heat shock protein 90 inhibitors in vitro.  |  Sun, X., et al. 2009. Mol Cell Biochem. 330: 181-5. PMID: 19412730
  7. Discovery of hybrid Hsp90 inhibitors and their anti-neoplastic effects against gefitinib-resistant non-small cell lung cancer (NSCLC).  |  Jeong, CH., et al. 2014. Bioorg Med Chem Lett. 24: 224-7. PMID: 24345447
  8. A cell-based high-content screen identifies isocotoin as a small molecule inhibitor of the meiosis-specific MEIOB-SPATA22 complex†.  |  Xu, Y., et al. 2020. Biol Reprod. 103: 333-342. PMID: 32463099
  9. Evolution of kinase polypharmacology across HSP90 drug discovery.  |  Antolin, AA., et al. 2021. Cell Chem Biol. 28: 1433-1445.e3. PMID: 34077750
  10. ROS/MMP-9 mediated CS degradation in BMSC inhibits citric acid metabolism participating in the dual regulation of bone remodelling.  |  Da, W., et al. 2024. Cell Death Discov. 10: 77. PMID: 38355572

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

VER-49009, 500 µg

sc-357409
500 µg
$123.00

VER-49009, 1 mg

sc-357409A
1 mg
$235.00

VER-49009, 5 mg

sc-357409B
5 mg
$992.00

VER-49009, 10 mg

sc-357409C
10 mg
$1725.00