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91973-71-6

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91973-71-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91973-71-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,9,7 and 3 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 91973-71:
(7*9)+(6*1)+(5*9)+(4*7)+(3*3)+(2*7)+(1*1)=166
166 % 10 = 6
So 91973-71-6 is a valid CAS Registry Number.

91973-71-6Downstream Products

91973-71-6Relevant articles and documents

Microwave-promoted TBAF-catalyzed SNAr reaction of aryl fluorides and ArSTMS: An efficient synthesis of unsymmetrical diaryl thioethers

Liu, Chuanzhi,Zang, Xufeng,Yu, Baohua,Yu, Xiaochun,Xu, Qing

supporting information; experimental part, p. 1143 - 1148 (2011/07/09)

Microwave irradiation was found to promote tetrabutylammonium fluoride catalyzed nucleophilic aromatic substitution of aryl fluorides and arylthiotrimethylsilanes, affording high yields of unsymmetrical diaryl thioethers efficiently under mild, transition-metal- and base-free conditions. Microwave showed unusual improvement on the reaction in not only the conditions and reaction rate, but also in selectivity and substrate scope. Georg Thieme Verlag Stuttgart - New York.

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