Dotinurad Impurity 244 CAS CATO-C4X-2494244

Purity ≥95%In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-2494244
Molecular FormulaC13H9Cl2NO5S
Molecular Weight362.19 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Dotinurad Impurity 244 CAS CATO-C4X-2494244 chemical structure

Description

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.

CATO supplies Dotinurad Impurity 244 (CAS CATO-C4X-2494244), a pharmacopoeial impurity reference standard (molecular formula C13H9Cl2NO5S, MW 362.19 g/mol) used for the identification and quantification of trace impurities in APIs.

Dotinurad Impurity 244 (C13H9Cl2NO5S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, 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).

CATO manufactures Dotinurad Impurity 244 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC13H9Cl2NO5S
Molecular Weight362.19 g/mol
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; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
Halogen ContentCl-containing
Nitrogen Atoms1
Sulfur Atoms1

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