4-Bromo-5-chloro-2-fluorobenzoic Acid CAS 1349708-91-3

Description

Compared with other compounds in its class, the molecular weight of 253.45 g/mol gives 4-Bromo-5-chloro-2-fluorobenzoic Acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

4-Bromo-5-chloro-2-fluorobenzoic Acid (CAS 1349708-91-3) is a high-purity analytical reference standard with the molecular formula C7H3BrClFO2 and a molecular weight of 253.45 g/mol.

Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine/bromine substitution, an aromatic ring system, 4-Bromo-5-chloro-2-fluorobenzoic Acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 253.45 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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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