Resmetirom impurity 103 CAS CATO-C4X-2912103

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-2912103
Molecular FormulaC13H12Cl3N3O
Molecular Weight332.61 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Resmetirom impurity 103 CAS CATO-C4X-2912103 chemical structure

Description

CATO manufactures Resmetirom impurity 103 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.

As a process- or degradation-related impurity, Resmetirom impurity 103 (CAS CATO-C4X-2912103, C13H12Cl3N3O) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.

Resmetirom impurity 103 (C13H12Cl3N3O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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.

Physical & Chemical Properties

Molecular FormulaC13H12Cl3N3O
Molecular Weight332.61 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor, low volatility)
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
Halogen ContentCl-containing
Nitrogen Atoms3

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