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791-57-1

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791-57-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 791-57-1 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 7,9 and 1 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 791-57:
(5*7)+(4*9)+(3*1)+(2*5)+(1*7)=91
91 % 10 = 1
So 791-57-1 is a valid CAS Registry Number.

791-57-1Relevant articles and documents

Direct nucleophilic fluorination of carbonyl groups of benzophenones and benzils with Deoxofluor

Chang, Ying,Tewari, Amit,Adi, Avi-Izak,Bae, Chulsung

, p. 9837 - 9842 (2008/12/22)

The carbonyl groups of diaryl ketones and diaryl diketones were directly fluorinated with bis(2-methoxyethyl)aminosulfur trifluoride (Deoxofluor) under neat conditions to give the corresponding gem-difluorides and tetrafluorinated derivatives in moderate

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