Pioglitazone Aldehyde Impurity CAS 114393-97-4

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.114393-97-4
Molecular FormulaC16H17NO2
Molecular Weight255.31 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Pioglitazone Aldehyde Impurity CAS 114393-97-4 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 255.31 g/mol gives Pioglitazone Aldehyde Impurity distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Pioglitazone Aldehyde Impurity (CAS 114393-97-4), a pharmacopoeial impurity reference standard (molecular formula C16H17NO2, MW 255.31 g/mol) used for the identification and quantification of trace impurities in APIs.

Pioglitazone Aldehyde Impurity (C16H17NO2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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 FormulaC16H17NO2
Molecular Weight255.31 g/mol
AppearancePale yellow to yellow crystalline powder
Purity>95%
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1989
Nitrogen Atoms1

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