CAS No. 865305-30-2

Batch: Purity:99.99
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AF-353 Chemical Structure
Chemical Structure
Check the AF-353 product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name 5-(5-iodo-4-methoxy-2-propan-2-ylphenoxy)pyrimidine-2,4-diamine
CAS Number 865305-30-2
Molecular Formula
C14H17IN4O2
Molecular Weight (MW) 400.21
SMILES CC(C)C1=CC(=C(C=C1OC2=CN=C(N=C2N)N)I)OC
InChIKey AATPYXMXFBBKFO-UHFFFAOYSA-N

Ordering Information

Biological Activity

AF-353 is a potent, selective, and orally bioavailable antagonist of human P2X3 (p, rat P2X3 (p, and human P2X2/3 receptors (p. By selectively blocking P2X3- and P2X2/3-mediated purinergic signaling, AF-353 attenuates ATP-stimulated inward currents in sensory neurons. This blockade suppresses downstream nociceptive signal transmission, resulting in diminished pain behaviors and hyperalgesia in preclinical animal models. [1]

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 100 mg/mL (249.86 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).

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