Donepezil Aldehyde Impurity CAS 22065-85-6

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.22065-85-6
Molecular FormulaC13H17
Molecular Weight203.28 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Donepezil Aldehyde Impurity CAS 22065-85-6 chemical structure

Description

As a process- or degradation-related impurity, Donepezil Aldehyde Impurity (CAS 22065-85-6, C13H17) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.

Based on its molecular formula C13H17, Donepezil Aldehyde Impurity contains an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 203.28 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.

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 FormulaC13H17
Molecular Weight203.28 g/mol
Purity97%+
StorageStore at 2-8°C
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)5.5
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1963

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