Date published: 2026-5-9

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VX 745 (CAS 209410-46-8)

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Alternate Names:
5-(2,6-Dichlorophenyl)-2-[2,4-difluorophenyl)thio]-6H-pyrimido[1,6-b]pyridazin-6-one
Application:
VX 745 is a selective and highly potent p38α and p38β inhibitor
CAS Number:
209410-46-8
Purity:
≥96%
Molecular Weight:
436.26
Molecular Formula:
C19H9Cl2F2N3OS
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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VX-745 is a small-molecule inhibitor of MAPK that is reported to be active against several isotypes of p38 MAPK, including p38α, p38βand p38γ. VX-745 is a p38 MAP kinase inhibitor, which means that it works by inhibiting the activity of the p38 MAP kinase enzyme. This enzyme is involved in a variety of cellular processes, including inflammation, cell growth, and apoptosis. By inhibiting the activity of this enzyme, neflamapimod is able to reduce inflammation, cell growth, and apoptosis.


VX 745 (CAS 209410-46-8) References

  1. Targeting p38 MAPK inhibits multiple myeloma cell growth in the bone marrow milieu.  |  Hideshima, T., et al. 2003. Blood. 101: 703-5. PMID: 12393542
  2. P38 MAP kinase inhibitors: evolution of imidazole-based and pyrido-pyrimidin-2-one lead classes.  |  Natarajan, SR. and Doherty, JB. 2005. Curr Top Med Chem. 5: 987-1003. PMID: 16178742
  3. Rapid synthesis of VX-745: p38 MAP kinase inhibition in Werner syndrome cells.  |  Bagley, MC., et al. 2007. Bioorg Med Chem Lett. 17: 5107-10. PMID: 17659871
  4. P38 MAP kinase inhibitors as potential therapeutics for the treatment of joint degeneration and pain associated with osteoarthritis.  |  Brown, KK., et al. 2008. J Inflamm (Lond). 5: 22. PMID: 19055838
  5. Microwave-assisted Ullmann C-S bond formation: synthesis of the P38alpha MAPK clinical candidate VX-745.  |  Bagley, MC., et al. 2009. J Org Chem. 74: 8336-42. PMID: 19778055
  6. Gram-scale synthesis of the p38α MAPK-inhibitor VX-745 for preclinical studies into Werner syndrome.  |  Bagley, MC., et al. 2010. Future Med Chem. 2: 1417-27. PMID: 21426137
  7. The Discovery of VX-745: A Novel and Selective p38α Kinase Inhibitor.  |  Duffy, JP., et al. 2011. ACS Med Chem Lett. 2: 758-63. PMID: 24900264
  8. Intra-articular bioactivity of a p38 MAPK inhibitor and development of an extended-release system.  |  Pradal, J., et al. 2015. Eur J Pharm Biopharm. 93: 110-7. PMID: 25836052
  9. Selective Brain-Targeted Antagonism of p38 MAPKα Reduces Hippocampal IL-1β Levels and Improves Morris Water Maze Performance in Aged Rats.  |  Alam, JJ. 2015. J Alzheimers Dis. 48: 219-27. PMID: 26401942
  10. Use of p38 MAPK Inhibitors for the Treatment of Werner Syndrome.  |  Bagley, MC., et al. 2010. Pharmaceuticals (Basel). 3: 1842-1872. PMID: 27713332
  11. Activating β-catenin/Pax6 axis negatively regulates osteoclastogenesis by selectively inhibiting phosphorylation of p38/MAPK.  |  Jie, Z., et al. 2019. FASEB J. 33: 4236-4247. PMID: 30526042
  12. Pharmacological inhibition of p38 potentiates antimicrobial peptide TP4-induced cell death in glioblastoma cells.  |  Su, BC. and Chen, JY. 2020. Mol Cell Biochem. 464: 1-9. PMID: 31673920
  13. P38α-MAPK Signaling Inhibition Attenuates Soleus Atrophy during Early Stages of Muscle Unloading.  |  Belova, SP., et al. 2020. Int J Mol Sci. 21: PMID: 32326654
  14. The role of MAP-kinase p38 in the m. soleus slow myosin mRNA transcription regulation during short-term functional unloading.  |  Sharlo, KA., et al. 2020. Arch Biochem Biophys. 695: 108622. PMID: 33053365
  15. Pleckstrin Levels Are Increased in Patients with Chronic Periodontitis and Regulated via the MAP Kinase-p38α Signaling Pathway in Gingival Fibroblasts.  |  Alim, MA., et al. 2021. Front Immunol. 12: 801096. PMID: 35087525

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

VX 745, 10 mg

sc-361401
10 mg
$183.00

VX 745, 50 mg

sc-361401A
50 mg
$842.00

What is the appearance of the compound?

Asked by: two2igm05
Thank you for your question. VX 745, sc-361401, is in yellow powder form.
Answered by: Chemical Support 4
Date published: 2017-04-26
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Rated 5 out of 5 by from Alam (PubMed ID 26401942) found that selectiveAlam (PubMed ID 26401942) found that selective inhibition of p38 MAPK with VX-745 in aged rats reduces hippocampal IL-1 levels and improves performance in the Morris Water Maze. -SCBT Publication Review
Date published: 2015-06-19
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VX 745 is rated 5.0 out of 5 by 1.
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