Ketotifen Impurity 15 CAS CATO-C4X-204615

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-204615
Molecular FormulaC19H14NO2S
Molecular Weight320.38 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Ketotifen Impurity 15 CAS CATO-C4X-204615 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.

Ketotifen Impurity 15 (CAS CATO-C4X-204615) is a certified pharmaceutical impurity reference standard with the molecular formula C19H14NO2S and a molecular weight of 320.38 g/mol.

Ketotifen Impurity 15 (C19H14NO2S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, 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 Ketotifen Impurity 15 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 FormulaC19H14NO2S
Molecular Weight320.38 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)13.5
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
Nitrogen Atoms1
Sulfur Atoms1

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