CAS No. 1971937-18-4

Batch: Purity:99.62
ARN-19702 Chemical Structure
Chemical Structure
Check the ARN-19702 product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

CAS Number 1971937-18-4
Molecular Formula

C21H22FN3O3S2

Molecular Weight (MW) 447.55
SMILES CC[S](=O)(=O)C1=CC=CC=C1C(=O)N2CCN(CC2C)C3=NC4=CC=C(F)C=C4S3

Ordering Information

Biological Activity

ARN19702 is an orally active, reversible N-acylethanolamine acid amidase (NAAA) inhibitor with an IC50 of 230 nM for human NAAA. By preventing NAAA-mediated degradation of lipid signaling molecules like palmitoylethanolamide, ARNenhances protective signaling to mitigate neuroinflammation. This pathway inhibition produces protective effects in mouse models of multiple sclerosis and reduces hypersensitivity in rodent models of neuropathic pain. [1][2]

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 89 mg/mL (198.86 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Ethanol 4 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).
Note: Technical data last updated: Sep 1, 2026.