7-bromo-6-fluoro-3H-1,3-benzoxazol-2-one CAS 243448-05-7

Purity 97%+In StockPharmaceutical Standards
CAS No.243448-05-7
Molecular FormulaC7H9BrFNO2
Molecular Weight238.05 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

7-bromo-6-fluoro-3H-1,3-benzoxazol-2-one CAS 243448-05-7 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 238.05 g/mol gives 7-bromo-6-fluoro-3H-1,3-benzoxazol-2-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

7-bromo-6-fluoro-3H-1,3-benzoxazol-2-one (CAS 243448-05-7), molecular formula C7H9BrFNO2 and molecular weight 238.05 g/mol, is a CATO reference standard with documented purity and traceability.

7-bromo-6-fluoro-3H-1,3-benzoxazol-2-one (C7H9BrFNO2) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/bromine substitution. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; 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.

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.

CATO manufactures 7-bromo-6-fluoro-3H-1,3-benzoxazol-2-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC7H9BrFNO2
Molecular Weight238.05 g/mol
AppearanceWhite to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility)
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)2025
Halogen ContentF/Br-containing
Nitrogen Atoms1

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