Cetylpyridinium Chloride Impurity 3 CAS CATO-C4X-27873

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-27873
Molecular FormulaC22H40N
Molecular WeightN/A
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Cetylpyridinium Chloride Impurity 3 CAS CATO-C4X-27873 chemical structure

Description

CATO supplies Cetylpyridinium Chloride Impurity 3 (CAS CATO-C4X-27873), a pharmacopoeial impurity reference standard (molecular formula C22H40NClH2O, MW 372.03 g/mol) used for the identification and quantification of trace impurities in APIs.

The molecular framework of Cetylpyridinium Chloride Impurity 3 (C22H40NClH2O) is characterized by an amide group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC22H40N Cl H2O
Molecular Weight372.03 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)2.0
Halogen ContentCl-containing
Nitrogen Atoms1

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