7-(Chlorodifluoromethyl)-2-(3,4-dichlorophenyl)-5-[4-(trifluoromethyl)phenyl]pyrazolo[1,5-a]pyrimidine CAS 439096-11-4

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 7-(Chlorodifluoromethyl)-2-(3,4-dichlorophenyl)-5-[4-(trifluoromethyl)phenyl]pyrazolo[1,5-a]pyrimidine (CAS 439096-11-4), a certified reference material (molecular formula C20H9Cl3F5N3, MW 492.66 g/mol) for analytical method development and quality control.

Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, fluorine/chlorine substitution, 7-(Chlorodifluoromethyl)-2-(3,4-dichlorophenyl)-5-[4-(trifluoromethyl)phenyl]pyrazolo[1,5-a]pyrimidine is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 492.66 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

Physical & Chemical Properties

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