Description

1,4-Diethynyl-2,3,5,6-tetrafluorobenzene is a highly functionalized, fluorinated aromatic building block characterized by its two terminal alkyne groups. This compound matters for its role as a critical precursor in advanced materials science, enabling the synthesis of rigid, conjugated structures with tailored electronic and optical properties. It is essential for researchers and manufacturers in the fields of organic electronics, specialty polymers, and pharmaceutical intermediates who require precise molecular architecture.

Application

• Organic Semiconductor Precursor: Serves as a key monomer for constructing linear, conjugated polymers and small molecules used in OLEDs, OFETs, and photovoltaic cells.
• Metal-Organic Framework (MOF) Linker: Used to create porous, fluorinated frameworks with potential applications in gas storage, separation, and catalysis due to the rigid, linear geometry of the diethynyl unit.
• Pharmaceutical Intermediate: Acts as a building block for the synthesis of complex, fluorinated bioactive molecules, leveraging the metabolic stability and lipophilicity imparted by the tetrafluoroaryl core.
• Cross-coupling Reactions: The terminal alkynes are ideal substrates for Sonogashira, Glaser, and other cross-coupling reactions to create extended π-systems and molecular wires.
• Specialty Polymer Synthesis: A monomer for high-performance polymers, including poly(arylene ethynylene)s (PAEs), which exhibit high thermal stability and unique optoelectronic characteristics.
• Ligand Synthesis: Used to prepare rigid, chelating ligands for coordination chemistry and catalysis.

Basic Information

Product Name	1,4-Diethynyl-2,3,5,6-Tetrafluorobenzene
CAS No.	38002-32-3
Molecular Formula	C10H2F4
Molecular Weight	198.12 g/mol
Synonyms	1,4-Bis(ethynyl)-2,3,5,6-tetrafluorobenzene; 2,3,5,6-Tetrafluoro-1,4-diethynylbenzene; 1,4-Diethynyltetrafluorobenzene; p-Diethynyltetrafluorobenzene; Tetrafluorodiethynylbenzene; 1,4-Diethynyl-perfluorobenzene; DFB-DA (in materials context); Contact for details on additional trade names.
EINECS	Contact for details

Quality Control

Our 1,4-Diethynyl-2,3,5,6-tetrafluorobenzene is produced and handled under strict quality management protocols to ensure batch-to-batch consistency and high purity for research and development applications. Each lot is supported by a comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles. We adhere to relevant industry standards and can provide material tailored to specific project requirements upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This compound may be sensitive to prolonged exposure to air and moisture; it is recommended to store under an inert atmosphere for long-term stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details

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