Ipratropium Impurity 23 CAS CATO-C4X-166523

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-166523
Molecular FormulaC21H29NO4
Molecular Weight359.46 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Ipratropium Impurity 23 CAS CATO-C4X-166523 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 359.46 g/mol gives Ipratropium Impurity 23 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Ipratropium Impurity 23 (CAS CATO-C4X-166523), a pharmacopoeial impurity reference standard (molecular formula C21H29NO4, MW 359.46 g/mol) used for the identification and quantification of trace impurities in APIs.

Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, Ipratropium Impurity 23 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 359.46 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).

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.

As a certified reference material (CRM), Ipratropium Impurity 23 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC21H29NO4
Molecular Weight359.46 g/mol
AppearancePale yellow to yellow crystalline powder
Purity>95%
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
Nitrogen Atoms1

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