1,2-Difluoro-4-((4-propylphenyl)ethynyl)benzene CAS 145698-43-7

Purity 97%+In StockPharmaceutical Standards
CAS No.145698-43-7
Molecular FormulaC17H14F2
Molecular Weight256.29 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1,2-Difluoro-4-((4-propylphenyl)ethynyl)benzene CAS 145698-43-7 chemical structure

Description

The occurrence of 1,2-Difluoro-4-((4-propylphenyl)ethynyl)benzene is closely related to fluorine substitution, a polycyclic aromatic system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies 1,2-Difluoro-4-((4-propylphenyl)ethynyl)benzene (CAS 145698-43-7), a certified reference material (molecular formula C17H14F2, MW 256.29 g/mol) for analytical method development and quality control.

The molecular framework of 1,2-Difluoro-4-((4-propylphenyl)ethynyl)benzene (C17H14F2) is characterized by fluorine substitution, a polycyclic aromatic system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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 FormulaC17H14F2
Molecular Weight256.29 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)10.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1998
Halogen ContentF-containing

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