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Sigma-Aldrich

NS-398

A cell-permeable selective inhibitor of COX-2 in vitro.

Synonym(s):

NS-398, N-(2-Cyclohexyloxy-4-nitrophenyl)methanesulfonamide

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About This Item

Empirical Formula (Hill Notation):
C13H18N2O5S
CAS Number:
123653-11-2
Molecular Weight:
314.36
MDL number:
MFCD00882995
UNSPSC Code:
41121800
NACRES:
NA.77

Quality Level

100

Assay

≥98% (TLC)

form

solid

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze

color

pale yellow

solubility

DMSO: 20 mg/mL

shipped in

ambient

storage temp.

10-30°C

InChI

1S/C13H18N2O5S/c1-21(18,19)14-12-8-7-10(15(16)17)9-13(12)20-11-5-3-2-4-6-11/h7-9,11,14H,2-6H2,1H3

InChI key

KTDZCOWXCWUPEO-UHFFFAOYSA-N

General description

A cell-permeable selective inhibitor of COX-2 in vitro. Inhibits sheep placental COX-2 (IC50 = 3.8 µM) while COX-1 activity is unaffected at concentrations up to 100 µM. Displays potent anti-inflammatory and analgesic activity in vivo in rat at concentrations from 0.3 to 5 mg/kg.
A cell-permeable, selective inhibitor of cyclooxygenase-2 (COX-2) in vitro. Inhibits sheep placenta COX-2 (IC50 = 3.8 µM) while COX-1 activity is completely unaffected at concentrations up to 100 µM. Displays potent anti-inflammatory and analgesic activity in vivo in rat at concentrations of 0.3 to 5 mg/kg. Does not produce any significant gastrointestinal lesions even at single oral doses of 1000 mg/kg. A useful tool to explore the role of COX-2 in physiologic and pathophysiologic processes.

Biochem/physiol Actions

Cell permeable: yes
Primary Target
COX-2
Product does not compete with ATP.
Reversible: no
Target IC50: 3.8 µM against COX-2

Warning

Toxicity: Standard Handling (A)

Reconstitution

Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 2 months at -20°C.

Other Notes

Ouellet, M., and Percival, M.D. 1995. Biochem. J.306, 247.
Futaki, N., et al. 1994. Prostaglandins47, 55.
Arai, I., et al. 1993. Res. Comm. Chem. Pathol. Pharmacol.81, 259.
Futaki, N., et al. 1993. Gen. Pharmacol.24, 105.
Futaki, N., et al. 1993. J. Pharm.Pharmacol.45, 753.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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