Difenidol Impurity 2 HCl CAS CATO-C4X-22272

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-22272
Molecular FormulaC11H22ClN
Molecular WeightN/A
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Difenidol Impurity 2 HCl CAS CATO-C4X-22272 chemical structure

Description

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.

Difenidol Impurity 2 HCl (CAS CATO-C4X-22272) is a certified pharmaceutical impurity reference standard with the molecular formula C11H22ClNHCl and a molecular weight of 240.21 g/mol.

Owing to chlorine substitution, Difenidol Impurity 2 HCl is typically white to off-white low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 240.21 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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 FormulaC11H22ClN HCl
Molecular Weight240.21 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)0.0
Halogen ContentCl-containing
Nitrogen Atoms1

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