1,1-Dibromo-3,3,4,4,4-pentafluoro-2-butanone CAS 203302-96-9

Purity 97%+In StockPharmaceutical Standards
CAS No.203302-96-9
Molecular FormulaC4HBr2F5O
Molecular Weight319.85 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1,1-Dibromo-3,3,4,4,4-pentafluoro-2-butanone CAS 203302-96-9 chemical structure

Description

1,1-Dibromo-3,3,4,4,4-pentafluoro-2-butanone (CAS 203302-96-9) is a high-purity analytical reference standard with the molecular formula C4HBr2F5O and a molecular weight of 319.85 g/mol.

Owing to a hydroxyl group, an ether linkage, fluorine/bromine substitution, 1,1-Dibromo-3,3,4,4,4-pentafluoro-2-butanone is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 319.85 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

Molecular FormulaC4HBr2F5O
Molecular Weight319.85 g/mol
Purity97%+
StorageStore at room temperature
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)1.0
CAS Registry Year (est.)2015
Halogen ContentF/Br-containing

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