CAS No. 303175-44-2

Batch: Purity:99.85
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Zapnometinib (PD0184264) Chemical Structure
Chemical Structure
Check the Zapnometinib (PD0184264) product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name 2-(2-chloro-4-iodoanilino)-3,4-difluorobenzoic acid
CAS Number 303175-44-2
Molecular Formula

C13H7ClF2INO2
Molecular Weight (MW) 409.55
SMILES OC(=O)C1=C(NC2=C(Cl)C=C(I)C=C2)C(=C(F)C=C1)F
InChIKey XCNBGWKQXRQKSA-UHFFFAOYSA-N

Ordering Information

Biological Activity

Zapnometinib (PD is a potent MEK inhibitor and the primary active metabolite of CI-1040. By targeting MEK within the Raf/MEK/ERK signaling pathway, it blocks downstream ERK phosphorylation and inhibits viral replication. Targeted inhibition of MEK1/2 signaling further suppresses host cell pro-inflammatory cytokine and chemokine production, demonstrating dual antiviral and immunomodulatory biological activity across cell-culture and animal infection models. [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 82 mg/mL (200.21 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Ethanol 3 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.