3,4-Dibromo-2-chloro-5-(difluoromethyl)pyridine CAS 1805041-34-2

Description

Compared with other compounds in its class, the molecular weight of 321.34 g/mol gives 3,4-Dibromo-2-chloro-5-(difluoromethyl)pyridine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

3,4-Dibromo-2-chloro-5-(difluoromethyl)pyridine (CAS 1805041-34-2), molecular formula C6H2Br2ClF2N and molecular weight 321.34 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of 3,4-Dibromo-2-chloro-5-(difluoromethyl)pyridine (C6H2Br2ClF2N) is characterized by a nitrile group, fluorine/chlorine/bromine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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.

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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