Menaquinone Impurity 46 CAS 57766-68-4

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.57766-68-4
Molecular FormulaC20H34
Molecular Weight274.48 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Menaquinone Impurity 46 CAS 57766-68-4 chemical structure

Description

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

CATO supplies Menaquinone Impurity 46 (CAS 57766-68-4), a pharmacopoeial impurity reference standard (molecular formula C20H34, MW 274.48 g/mol) used for the identification and quantification of trace impurities in APIs.

Menaquinone Impurity 46 (C20H34) contains an aromatic ring system. 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 FormulaC20H34
Molecular Weight274.48 g/mol
Purity97%+
StorageStore at room temperature
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1973

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