Date published: 2026-8-1

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NS-398 (CAS 123653-11-2)

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Alternate Names:
N-[2-(cyclohexyloxy)-4-nitrophenyl]-methanesulfonamide
Application:
NS-398 is a selective Cox-2 inhibitor neuroprotective agent
CAS Number:
123653-11-2
Purity:
≥98%
Molecular Weight:
314.35
Molecular Formula:
C13H18N2O5S
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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NS-398 is a compound utilized in biochemical research for its inhibitory action on the enzyme cyclooxygenase-2 (COX-2). This specificity makes NS-398 a useful tool for scientists studying the enzyme′s role in the synthesis of prostaglandins, which are lipid compounds involved in various cellular processes. By selectively inhibiting COX-2, NS-398 allows for a deeper understanding of the distinct physiological and pathophysiological roles of COX-2-derived prostaglandins, separate from those produced by COX-1. Additionally, NS-398 aids in the exploration of inflammation mechanisms, given the involvement of COX-2 in the inflammatory response. This research contributes to a broader comprehension of enzyme functions in cellular signaling and regulation.


NS-398 (CAS 123653-11-2) References

  1. Cyclooxygenase-2 inhibitor ns-398 protects neuronal cultures from lipopolysaccharide-induced neurotoxicity.  |  Araki, E., et al. 2001. Stroke. 32: 2370-5. PMID: 11588328
  2. Cyclooxygenase-2 is an obligatory factor in methamphetamine-induced neurotoxicity.  |  Thomas, DM. and Kuhn, DM. 2005. J Pharmacol Exp Ther. 313: 870-6. PMID: 15718289
  3. Multifunctional role of VIP in prostate cancer progression in a xenograft model: suppression by curcumin and COX-2 inhibitor NS-398.  |  Fernández-Martínez, AB., et al. 2009. Peptides. 30: 2357-64. PMID: 19772879
  4. A cyclooxygase-2 inhibitor NS-398-enhanced apoptosis of esophageal carcinoma cell EC9706 by adjusting expression of survivin and caspase-3.  |  Li, S., et al. 2011. Cancer Invest. 29: 102-6. PMID: 21329005
  5. Reduced tumour progression and angiogenesis in 1,2-dimethylhydrazine mice treated with NS-398 is associated with down-regulation of cyclooxygenase-2 and decreased beta-catenin nuclear localisation.  |  Banu, NA., et al. 2011. Cell Commun Adhes. 18: 1-8. PMID: 21679035
  6. Antiviral activity of a selective COX-2 inhibitor NS-398 on avian influenza H5N1 infection.  |  Lee, SM., et al. 2011. Influenza Other Respir Viruses. 5: 230-2. PMID: 21761591
  7. The structure of NS-398 bound to cyclooxygenase-2.  |  Vecchio, AJ. and Malkowski, MG. 2011. J Struct Biol. 176: 254-8. PMID: 21843643
  8. The cyclooxygenase-2 selective inhibitor NS-398 does not influence trabecular or cortical bone gain resulting from repeated mechanical loading in female mice.  |  Sugiyama, T., et al. 2013. Osteoporos Int. 24: 383-8. PMID: 22349912
  9. Contribution of vasoactive eicosanoids and nitric oxide production to the effect of selective cyclooxygenase-2 inhibitor, NS-398, on endotoxin-induced hypotension in rats.  |  Tunctan, B., et al. 2010. Basic Clin Pharmacol Toxicol. 107: 877-82. PMID: 22545970
  10. Effects of COX-2 inhibitor NS-398 on IL-10 expression in rat fungal keratitis.  |  Li, N., et al. 2011. Int J Ophthalmol. 4: 165-9. PMID: 22553634
  11. NS-398 reverses hypotension in endotoxemic rats: contribution of eicosanoids, NO, and peroxynitrite.  |  Tunctan, B., et al. 2013. Prostaglandins Other Lipid Mediat. 104-105: 93-108. PMID: 22975359
  12. Co-administration of subtherapeutic diazepam enhances neuroprotective effect of COX-2 inhibitor, NS-398, after lithium pilocarpine-induced status epilepticus.  |  Trandafir, CC., et al. 2015. Neuroscience. 284: 601-610. PMID: 25453777
  13. Retraction Note to: Effect of NS-398, a cyclooxygenase-2 selective inhibitor, on the cytotoxicity of cytotoxic T lymphocytes to ovarian carcinoma cells.  |  . 2015. Tumour Biol. 36: 7297. PMID: 26281984
  14. COX-2 inhibitor NS-398 suppresses doxorubicin-induced p53 accumulation through inhibition of ROS-mediated Jnk activation.  |  Kim, J. and Shim, M. 2016. Mol Carcinog. 55: 2156-2167. PMID: 26756900
  15. The COX-2-Selective Antagonist (NS-398) Inhibits Choroidal Neovascularization and Subretinal Fibrosis.  |  Zhang, R., et al. 2016. PLoS One. 11: e0146808. PMID: 26760305

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

NS-398, 5 mg

sc-200604
5 mg
$86.00

NS-398, 25 mg

sc-200604A
25 mg
$339.00