Vonoprazan Impurity 219 CAS 123151-15-5

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.123151-15-5
Molecular FormulaC5H4NO2S
Molecular WeightN/A
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Vonoprazan Impurity 219 CAS 123151-15-5 chemical structure

Description

CATO supplies Vonoprazan Impurity 219 (CAS 123151-15-5), a pharmacopoeial impurity reference standard (molecular formula C5H4NO2SNa, MW 165.14 g/mol) used for the identification and quantification of trace impurities in APIs.

Vonoprazan Impurity 219 (C5H4NO2SNa) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.

As a certified reference material (CRM), Vonoprazan Impurity 219 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 FormulaC5H4NO2S Na
Molecular Weight165.14 g/mol
Purity>95%
StorageStore at 2-8°C, protect from light
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)4.5
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1992
Nitrogen Atoms1
Sulfur Atoms1

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