2-Bromo-7-fluoro-9H-fluorene CAS 1806-21-9

Purity 97%+In StockPharmaceutical Standards
CAS No.1806-21-9
Molecular FormulaC13H8BrF
Molecular Weight263.11 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Bromo-7-fluoro-9H-fluorene CAS 1806-21-9 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 263.11 g/mol gives 2-Bromo-7-fluoro-9H-fluorene distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies 2-Bromo-7-fluoro-9H-fluorene (CAS 1806-21-9), a certified reference material (molecular formula C13H8BrF, MW 263.11 g/mol) for analytical method development and quality control.

Owing to fluorine/bromine substitution, an aromatic ring system, 2-Bromo-7-fluoro-9H-fluorene is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 263.11 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.

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

Molecular FormulaC13H8BrF
Molecular Weight263.11 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957
Halogen ContentF/Br-containing

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