CAS No. 6004-24-6

Batch: Purity:99.98
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Cetylpyridinium chloride monohydrate Chemical Structure
Chemical Structure
Check the Cetylpyridinium chloride monohydrate product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name 1-hexadecylpyridin-1-ium;chloride;hydrate
CAS Number 6004-24-6
Molecular Formula

C21H40ClNO
Molecular Weight (MW) 358
SMILES O.[Cl-].CCCCCCCCCCCCCCCC[N+]1=CC=CC=C1
InChIKey NFCRBQADEGXVDL-UHFFFAOYSA-M

Biological Activity

Cetylpyridinium chloride monohydrate is a quaternary ammonium compound that functions as a broad-spectrum antimicrobial and virucidal agent. It exerts its antiviral activity primarily by disrupting the viral lipid envelope, which inactivates both susceptible and drug-resistant strains of influenza virus. This membrane disruption leads to the loss of viral infectivity and prevents viral entry into host cells, effectively suppressing viral replication. [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 72 mg/mL (201.11 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Water 72 mg/mL
Ethanol 72 mg/mL
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).

Reference

[1] Popkin DL, et al. Pathog Immun. 2017;2(2):252-269.

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