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Benzenesulfonyl chloride, 4-[(trifluoroethenyl)oxy]- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

297765-09-4

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297765-09-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 297765-09-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,9,7,7,6 and 5 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 297765-09:
(8*2)+(7*9)+(6*7)+(5*7)+(4*6)+(3*5)+(2*0)+(1*9)=204
204 % 10 = 4
So 297765-09-4 is a valid CAS Registry Number.

297765-09-4Relevant articles and documents

Perfluorocyclobutyl (PFCB) aromatic polyethers: Synthesis and characterization of new sulfonimide containing monomers and fluoropolymers

Ford,DesMarteau,Smith Jr.

, p. 653 - 660 (2005)

The synthesis and thermal cyclopolymerization of aryl trifluorovinyl ether monomers containing novel sulfonimide acid functionalities are described. The monomers are prepared starting from commercially available 4-bromophenol in five steps. These novel polymers explore a new versatile class of partially fluorinated polymers for potential use in fuel cells and other electrochemical applications.

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