CAS No. 13710-19-5

Batch: Purity:99.81
Tolfenamic Acid Chemical Structure
Chemical Structure
Check the Tolfenamic Acid product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name 2-(3-chloro-2-methylanilino)benzoic acid
CAS Number 13710-19-5
Molecular Formula

C14H12ClNO2

Molecular Weight (MW) 261.7
SMILES CC1=C(C=CC=C1Cl)NC2=CC=CC=C2C(=O)O
InChIKey YEZNLOUZAIOMLT-UHFFFAOYSA-N

Ordering Information

Biological Activity

Tolfenamic acid is a cyclooxygenase-2 (COX-2) inhibitor that suppresses prostaglandin synthesis within inflammatory signaling cascades. Additionally, tolfenamic acid downregulates specificity protein transcription factors, including Sp1, Sp3, and Sp4, leading to decreased expression of pro-survival and angiogenic targets. Downstream phenotypic effects include the inhibition of cell proliferation, suppression of tumor growth, and induction of apoptosis in various cancer models.

How to Prepare Stock Solution?

Concentration Volume Mass
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Solubility

Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
Solvent Solubility & Note
DMSO 52 mg/mL (198.7 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.