Vitamin K1 Impurity 32 CAS 4444-13-7

Purity >90%In StockPharmacopoeial Impurity Standards
CAS No.4444-13-7
Molecular FormulaC20H39Br
Molecular Weight359.43 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Vitamin K1 Impurity 32 CAS 4444-13-7 chemical structure

Description

As a process- or degradation-related impurity, Vitamin K1 Impurity 32 (CAS 4444-13-7, C20H39Br) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.

Vitamin K1 Impurity 32 (C20H39Br) contains bromine 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.

As a certified reference material (CRM), Vitamin K1 Impurity 32 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 FormulaC20H39Br
Molecular Weight359.43 g/mol
Purity>90%
StorageStore at room temperature
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)1.0
CAS Registry Year (est.)1958
Halogen ContentBr-containing

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