Argatroban Impurity 21 CAS CATO-C4X-100721

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-100721
Molecular FormulaC10H8ClNO2S
Molecular Weight241.69 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Argatroban Impurity 21 CAS CATO-C4X-100721 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 241.69 g/mol gives Argatroban Impurity 21 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Argatroban Impurity 21 (CAS CATO-C4X-100721), a pharmacopoeial impurity reference standard (molecular formula C10H8ClNO2S, MW 241.69 g/mol) used for the identification and quantification of trace impurities in APIs.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution, Argatroban Impurity 21 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 241.69 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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), Argatroban Impurity 21 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 FormulaC10H8ClNO2S
Molecular Weight241.69 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
Halogen ContentCl-containing
Nitrogen Atoms1
Sulfur Atoms1

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