Fig. 1 · Structure

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NS-398

Cat. No. A13116 CAS 123653-11-2

COX-2 inhibitor

NS-398 is a non-steroidal an-inflammatory agent with analgesic and antipyretic effects, and selectively inhibits prostaglandin G/H synthase 2/cyclooxygenase 2 (COX-2) activity, with an IC50 of 3.8 μM, and has no effect on COX-1 at 100 μM.

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Biological Activity

Target & Activity

Target Activity Value
COX-2 IC50 3.8 μM

Cellular Effect

Cell Line Activity Value Description Reference
A549 IC50 20 μM Inhibition of mPGES-1 in human A549 cell microsomes assessed as conversion of PGH2 into PGE2 at 0 degC after 5 mins by HPLC-UV analysis [PMID: 22209272]
HaCaT IC50 10 nM Inhibition of PGE2 production in human HaCaT cells after 24 hrs by RIA [PMID: 15387642]
RAW264.7 IC50 > 10 μM Antiinflammatory activity against LPS-stimulated mouse RAW264.7 cells assessed as nitrite accumulation after 20 hrs by fluorimetry [PMID: 11678654]
RAW264.7 IC50 0.007 μM Inhibition of mPGES-1 in mouse RAW264.7 cells assessed as reduction in LPS-induced PGE2 production after 24 hrs [PMID: 27720548]
RAW264.7 IC50 0.007 μM Inhibition of COX-2 in mouse RAW264.7 cells assessed as decrease in LPS-induced PGE2 production treated prior to LPS challenge by enzyme immunoassay [PMID: 24656662]
RAW264.7 IC50 0.00723 μM Antiinflammatory activity in mouse RAW264.7 cells assessed as inhibition of LPS-induced PGE2 production after 24 hrs by enzyme immunoassay [PMID: 29107425]
RAW264.7 IC50 0.05 μM Inhibition of COX2-mediated PGE2 production in LPS-stimulated mouse RAW264.7 cells by enzyme immunoassay [PMID: 19233646]
RAW264.7 IC50 0.1 μM Inhibition of IFN-gamma/LPS-induced PGE2 production in mouse RAW264.7 cells after 17 to 20 hrs by EIA method [PMID: 25027933]
RAW264.7 IC50 0.81 μM Inhibition of COX2 in mouse RAW264.7 cells by enzyme immunoassay [PMID: 20056549]
RAW264.7 IC50 2.1 μM Antiinflammatory activity against LPS-stimulated mouse RAW264.7 cells assessed as PGE2 accumulation after 20 hrs by RIA [PMID: 11678654]
RAW264.7 IC50 4.8 μM Antiinflammatory activity in mouse RAW264.7 cells assessed as inhibition of LPS-induced PGE2 production by EIA [PMID: 20004572]
RAW264.7 IC50 6.7 nM Antiinflammatory activity against LPS-stimulated mouse RAW264.7 cells assessed as decrease in PGE2 production preincubated for 1 hr followed by LPS stimulation and measured after 24 hrs by ELISA [PMID: 31747281]
RAW264.7 IC50 6.74 μM Antiinflammatory activity in mouse RAW264.7 cells assessed as inhibition of LPS-stimulated PGE2 production by ELISA [PMID: 28408221]
RAW264.7 IC50 63.7 μM Inhibition of COX1 in mouse RAW264.7 cells by enzyme immunoassay [PMID: 20056549]
RAW264.7 IC50 7 nM Suppression of PGE2 production in LPS-induced mouse RAW264.7 cells after 24 hrs by enzyme immunoassay [PMID: 26602278]
RAW264.7 IC50 7.01 nM Antiinflammatory activity against mouse RAW264.7 cells assessed as inhibition of LPS-induced PGE2 production administered 1 hr prior to LPS-challenge measured after 24 hrs by EIA [PMID: 24360561]
RAW264.7 IC50 7.23 nM Antiinflammatory activity in mouse RAW264.7 cells assessed as inhibition of LPS-induced PGE2 production pretreated for 1 hr followed by LPS addition measured after 24 hrs [PMID: 29102229]
SK-BR-3 IC50 0.68 μM Inhibition of aromatase in human SKBR3 cells by tritiated water release assay [PMID: 18271519]
SK-BR-3 IC50 0.72 μM Cytotoxicity against human SK-BR-3 cells after 24 hrs by MTT assay relative to NS398 [PMID: 17095221]

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Specifications

Manufacturer Adooq Bioscience
Actions Inhibitor
CAS Number 123653-11-2
Applications COX-2 inhibitor
Formula C13H18N2O5S
Molecular Weight 314.36
SMILES
CS(=O)(=O)NC1=C(C=C(C=C1)[N+](=O)[O-])OC2CCCCC2

Storage & Solubility

In Vitro Solubility

Reported Solubility

SolventReported Solubility
DMSO 53 mg/mL (168.59 mM)
Water Insoluble
Ethanol Insoluble

Preparing Stock Solutions

Stock preparation is unavailable for this product molecular weight.

Calculated stock concentrations do not establish solvent solubility. Refer to the reported solubility data for experimental guidance.

Storage

Store powder at -20°C, keep desiccated.
In powder form, the chemical is stable for 36 months.
In solution, store at -20°C and use within 1 month to prevent loss of potency. Aliquot to avoid multiple freeze/thaw cycles.

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