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659-27-8

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659-27-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 659-27-8 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,5 and 9 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 659-27:
(5*6)+(4*5)+(3*9)+(2*2)+(1*7)=88
88 % 10 = 8
So 659-27-8 is a valid CAS Registry Number.

659-27-8Downstream Products

659-27-8Relevant articles and documents

Synthesis of Fluoroalkyl Sulfides via Additive-Free Hydrothiolation and Sequential Functionalization Reactions

Sunagawa, Denise E.,Ishida, Naoyoshi,Iwamoto, Hiroaki,Ohashi, Masato,Fruit, Corinne,Ogoshi, Sensuke

, p. 6015 - 6024 (2021)

A modular synthetic method, involving a hydrothiolation, silylation, and fluoroalkylation, for the construction of highly functionalized fluoroalkyl sulfides has been developed. The use of aprotic polar solvents enables the additive-free chemoselective hydrothiolation of tetrafluoroethylene, trifluorochloroethylene, and hexafluoropropene with various thiols. The stepwise functionalization reactions convert the hydrothiolated intermediates into the tetrafluoroethyl sulfides in high efficiency. The method avoids the use of the environmental pollutant Halon-2402, which was employed as a building block in a reported synthetic route.

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