Azilsartan Impurity 136 CAS CATO-C4X-1096136

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-1096136
Molecular FormulaC26H25N3O4
Molecular Weight443.49 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Azilsartan Impurity 136 CAS CATO-C4X-1096136 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 443.49 g/mol gives Azilsartan Impurity 136 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Azilsartan Impurity 136 (CAS CATO-C4X-1096136), a pharmacopoeial impurity reference standard (molecular formula C26H25N3O4, MW 443.49 g/mol) used for the identification and quantification of trace impurities in APIs.

Azilsartan Impurity 136 (C26H25N3O4) contains a steroid core, an amide 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.

CATO manufactures Azilsartan Impurity 136 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 FormulaC26H25N3O4
Molecular Weight443.49 g/mol
AppearancePale yellow to yellow crystalline powder
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)16.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
Nitrogen Atoms3

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