Flupentixol Impurity 45 CAS CATO-C4X-189545

Description

Compared with other compounds in its class, the molecular weight of 419.46 g/mol gives Flupentixol Impurity 45 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Flupentixol Impurity 45 (CAS CATO-C4X-189545), a pharmacopoeial impurity reference standard (molecular formula C21H20F3N3OS, MW 419.46 g/mol) used for the identification and quantification of trace impurities in APIs.

Flupentixol Impurity 45 (C21H20F3N3OS) contains a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, fluorine 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.

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.

Physical & Chemical Properties

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