Solifenacin EP Impurity B CAS 1353274-25-5

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.1353274-25-5
Molecular FormulaC19H21NO2
Molecular Weight295.38 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Solifenacin EP Impurity B CAS 1353274-25-5 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 295.38 g/mol gives Solifenacin EP Impurity B distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Solifenacin EP Impurity B (CAS 1353274-25-5), a pharmacopoeial impurity reference standard (molecular formula C19H21NO2, MW 295.38 g/mol) used for the identification and quantification of trace impurities in APIs.

Solifenacin EP Impurity B (C19H21NO2) contains a steroid core, 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.

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), Solifenacin EP Impurity B 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 FormulaC19H21NO2
Molecular Weight295.38 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
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)10.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1991
Nitrogen Atoms1

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