2,2-Difluoro-1-(thiophen-2-yl)ethan-1-one CAS 2991-99-3

Purity 97%+In StockPharmaceutical Standards
CAS No.2991-99-3
Molecular FormulaC6H4F2OS
Molecular Weight162.16 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2,2-Difluoro-1-(thiophen-2-yl)ethan-1-one CAS 2991-99-3 chemical structure

Description

CATO supplies 2,2-Difluoro-1-(thiophen-2-yl)ethan-1-one (CAS 2991-99-3), a certified reference material (molecular formula C6H4F2OS, MW 162.16 g/mol) for analytical method development and quality control.

2,2-Difluoro-1-(thiophen-2-yl)ethan-1-one (C6H4F2OS) contains sulfur-containing functionality, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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 FormulaC6H4F2OS
Molecular Weight162.16 g/mol
Purity97%+
StorageStore at 2-8°C, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957
Halogen ContentF-containing
Sulfur Atoms1

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