4-((2,6-Difluoro-4-propylphenyl)ethynyl)-4'-ethyl-1,1'-biphenyl CAS 221526-78-9

Description

The occurrence of 4-((2,6-Difluoro-4-propylphenyl)ethynyl)-4'-ethyl-1,1'-biphenyl is closely related to fluorine substitution, a polycyclic aromatic system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

4-((2,6-Difluoro-4-propylphenyl)ethynyl)-4'-ethyl-1,1'-biphenyl (CAS 221526-78-9) is a high-purity analytical reference standard with the molecular formula C25H22F2 and a molecular weight of 360.44 g/mol.

Based on its molecular formula C25H22F2, 4-((2,6-Difluoro-4-propylphenyl)ethynyl)-4'-ethyl-1,1'-biphenyl contains fluorine substitution, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 360.44 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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

Why CATO?

• ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
• 130,000+ catalog items in stock, COA supplied with every batch
• Worldwide shipping with full export documentation (HS code guidance available)
• Technical support: +86 18665070610 / Nicole.chen@cato-chem.com