Description

4'-Ethynyl-2,4-difluorobiphenyl is a high-purity, advanced organic intermediate characterized by its biphenyl core and ethynyl functional group. This compound matters for its role as a critical building block in the synthesis of complex molecules, particularly in advanced material science and pharmaceutical research. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and organic electronics industries for constructing novel molecular architectures.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs), especially for compounds targeting central nervous system disorders.
• Agrochemical Synthesis: Used in the development of novel herbicides and fungicides, leveraging the difluorobiphenyl scaffold for enhanced biological activity.
• Organic Light-Emitting Diode (OLED) Materials: Serves as a core building block for electron-transport materials and host materials in OLED device fabrication.
• Liquid Crystal Materials: Incorporated into the molecular structure of advanced liquid crystals for display applications.
• Polymer Chemistry: Acts as a monomer or cross-linking agent in the production of specialty polymers with unique thermal and optical properties.
• Academic & Industrial R&D: Employed in research laboratories for method development and exploring new chemical reactions involving alkynes and fluorinated aromatics.

Basic Information

Product Name	4'-Ethynyl-2,4-difluorobiphenyl
CAS No.	56917-34-1
Molecular Formula	C14H8F2
Molecular Weight	214.21 g/mol
Synonyms	2,4-Difluoro-4'-ethynylbiphenyl; 4-Ethynyl-2',4'-difluorobiphenyl; 1-Ethynyl-4-(2,4-difluorophenyl)benzene; [1,1'-Biphenyl]-4-carbonitrile, 2',4'-difluoro-4-ethynyl-; 4-(2,4-Difluorophenyl)phenylacetylene
EINECS	Contact for details

Quality Control

Our 4'-Ethynyl-2,4-difluorobiphenyl is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistent lot-to-lot performance. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry, and well-ventilated place. Recommended storage temperature is 2-8°C for long-term stability. Keep away from strong acids and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.