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50285-19-3

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50285-19-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 50285-19-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,0,2,8 and 5 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 50285-19:
(7*5)+(6*0)+(5*2)+(4*8)+(3*5)+(2*1)+(1*9)=103
103 % 10 = 3
So 50285-19-3 is a valid CAS Registry Number.

50285-19-3Relevant articles and documents

Photoinduced Fluorination of Hexafluoropropene Trimers: Synthesis of Branched Perfluoroalkanes

Tonelli, Claudio,Tortelli, Vito

, p. 23 - 26 (2007/10/02)

Hexafluoropropene trimers, perfluoro-3-ethyl-2,4-dimethylpent-2-ene (1) and perfluoro-3-isopropyl-4-methylpent-2-ene (2) reacted with fluorine under u.v. irradiation to give the new and highly branched perfluoroalkanes perfluoro-2,3,3,4-tetramethylpentane (7) and perfluoro-2,3,4-trimethylpentane (8) through a mechanism involving the elimination-readdition of CF3 groups.Compound (7), which is very bulky, can be easily cleaved at 200 deg C to give two perfluoro radicals capable of initiating the polymerization of vinylic monomers.

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