CAS No. 99464-64-9

Batch: Purity:99.13
Ampiroxicam Chemical Structure
Chemical Structure
Check the Ampiroxicam product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name ethyl 1-[[2-methyl-1,1-dioxo-3-(pyridin-2-ylcarbamoyl)-1λ6,2-benzothiazin-4-yl]oxy]ethyl carbonate
CAS Number 99464-64-9
Molecular Formula

C20H21N3O7S

Molecular Weight (MW) 447.46
SMILES CCOC(=O)OC(C)OC1=C(N(S(=O)(=O)C2=CC=CC=C21)C)C(=O)NC3=CC=CC=N3
InChIKey LSNWBKACGXCGAJ-UHFFFAOYSA-N

Ordering Information

Biological Activity

Ampiroxicam (CP 65703) is a nonselective cyclooxygenase inhibitor that functions as a prodrug of piroxicam. Upon conversion to piroxicam, it inhibits cyclooxygenase activity and suppresses the biosynthesis of pro-inflammatory prostaglandins from arachidonic acid. This blockade attenuates pro-inflammatory mediator signaling within affected tissues. Consequently, ampiroxicam regulates downstream cascade activity, reducing cellular inflammatory phenotypes and modulating vascular and cellular immune responses associated with inflammation.

How to Prepare Stock Solution?

Concentration Volume Mass
1 mg 5 mg 10 mg
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Solubility

Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
Solvent Solubility & Note
DMSO 90 mg/mL (201.13 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Water Insoluble
Ethanol Insoluble
FAQ
Q: Why does a DMSO stock precipitate in media/saline?
A: It is caused by unheated aqueous media (supersaturation), local solvent shock, or incorrect mixing sequence.
How to fix it?
  • Preheat media/saline to 37°C.
  • Mix rapidly (pipette/vortex) upon addition.
  • For complex mixes, always add the aqueous phase last.
  • Re-dissolve minor precipitates with a 37°C water bath and sonication (≤30 min).

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Note: Technical data last updated: Sep 1, 2026.