950-70-9

Basic information

• Product Name: 1,4-Benzenedicarbonyl difluoride, 2,3,5,6-tetrafluoro-
• CAS NO: 950-70-9
• Molecular Formula: C8F6O2
• Molecular Weight: 242.077
• Mol File: 950-70-9.mol
• Article Data: 4

Chemical Properties

• CAS DataBase Reference: 1,4-Benzenedicarbonyl difluoride, 2,3,5,6-tetrafluoro-(CAS DataBase Reference)
• NIST Chemistry Reference: 1,4-Benzenedicarbonyl difluoride, 2,3,5,6-tetrafluoro-(950-70-9)
• EPA Substance Registry System: 1,4-Benzenedicarbonyl difluoride, 2,3,5,6-tetrafluoro-(950-70-9)

Safety Data

• Hazardous Substances Data: 950-70-9(Hazardous Substances Data)

Usage

Physical state

White crystalline solid

Melting point

174-176°C

Uses

Building block in the production of specialty polymers and resins, synthesis of high-performance materials such as adhesives, coatings, and composite materials

Properties

High thermal stability, resistance to chemicals

Safety concerns

Toxic, can cause skin and eye irritation upon contact

Handling precautions

Handle with care, use appropriate protective equipment

Upstream product

• 719-32-4 tetrachloroterephthaloyl dichloride 
• 651-89-8 1,2,4,5-tetrafluoro-3,6-bis-trifluoromethyl-benzene 
• 117338-23-5 2,3,5,6-tetrafluoro-4-trifluoromethyl-benzoyl fluoride 
• 5216-22-8 perfluoro-4-methylbenzoic acid 
• 140455-18-1 heptafluoro-p-toluyl chloride 
• 652-36-8 2,3,5,6-tetrafluoroterephthalic acid 

Downstream Products

• 727-55-9 dimethyl 2,3,5,6-tetrafluoroterephthalate 
• 940940-15-8 dimethyl 2,3,5-trifluoro-6-chloroterephthalate 
• 92339-07-6 2,3,5,6-tetrafluoro-1,4-benzenedimethanol 

Relevant articles and documents

POTASSIUM FLUORIDE DISPERSION SOLUTION, AND PROCESS FOR PRODUCTION OF FLUORINATED ORGANIC COMPOUND USING THE SAME

A potassium fluoride dispersion essentially consisting of potassium fluoride and an aprotic organic solvent having a boiling point higher than that of methanol, which is obtainable by mixing a mixture containing potassium fluoride and 5 to 50 parts by weight of methanol per 1 part by weight of potassium fluoride with the aprotic organic solvent followed by concentrating the obtained mixture, and a process for producing a fluorine-containing organic compound comprising contacting an organic compound having at least one group capable of being substituted nucleophilically with a fluorine atom with the potassium fluoride dispersion.

METHOD FOR PRODUCING TETRAFLUOROTEREPHTHALIC ACID DIFLUORIDE

A method for producing tetrafluoroterephthalic acid difluoride comprising reacting tetrachloroterephthalic acid dichloride with potassium fluoride in the presence of dimethyl sulfone.