5-Bromo-4-fluoro-2-hydroxybenzoic acid CAS 1644-71-9

Purity 97%+In StockPharmaceutical Standards
CAS No.1644-71-9
Molecular FormulaC7H4BrFO3
Molecular Weight235.01 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-Bromo-4-fluoro-2-hydroxybenzoic acid CAS 1644-71-9 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 235.01 g/mol gives 5-Bromo-4-fluoro-2-hydroxybenzoic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies 5-Bromo-4-fluoro-2-hydroxybenzoic acid (CAS 1644-71-9), a certified reference material (molecular formula C7H4BrFO3, MW 235.01 g/mol) for analytical method development and quality control.

Based on its molecular formula C7H4BrFO3, 5-Bromo-4-fluoro-2-hydroxybenzoic acid contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 235.01 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.

As a certified reference material (CRM), 5-Bromo-4-fluoro-2-hydroxybenzoic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC7H4BrFO3
Molecular Weight235.01 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor, low volatility)
Purity97%+
StorageStore in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityMay oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957
Halogen ContentF/Br-containing

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