SMILES:

CCC(=O)NS(=O)(=O)C1=CC=C(C=C1)C2=C(ON=C2C3=CC=CC=C3)C
Parecoxib Chemical Structure
Chemical Structure
Check the Parecoxib product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name N-[4-(5-methyl-3-phenyl-1,2-oxazol-4-yl)phenyl]sulfonylpropanamide
CAS Number 198470-84-7
Molecular Formula

C19H18N2O4S
Molecular Weight (MW) 370.42
SMILES CCC(=O)NS(=O)(=O)C1=CC=C(C=C1)C2=C(ON=C2C3=CC=CC=C3)C
InChIKey TZRHLKRLEZJVIJ-UHFFFAOYSA-N

How to Prepare Stock Solution?

Concentration Volume Mass
🧮 Molarity Calculator

Solubility

Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
Solvent Solubility & Note
DMSO 74 mg/mL (199.77 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Ethanol 2 mg/mL
Water 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.