Des-SV impurity CAS CATO-CPTD789028

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.CATO-CPTD789028
Molecular FormulaC163H270N50O49S2
Molecular Weight3778.32 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Des-SV impurity CAS CATO-CPTD789028 chemical structure

Description

CATO supplies Des-SV impurity (CAS CATO-CPTD789028), a pharmacopoeial impurity reference standard (molecular formula C163H270N50O49S2, MW 3778.32 g/mol) used for the identification and quantification of trace impurities in APIs.

Des-SV impurity (C163H270N50O49S2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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), Des-SV impurity 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 FormulaC163H270N50O49S2
Molecular Weight3778.32 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)54.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
Nitrogen Atoms50
Sulfur Atoms2

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