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861721-58-6

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861721-58-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 861721-58-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,6,1,7,2 and 1 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 861721-58:
(8*8)+(7*6)+(6*1)+(5*7)+(4*2)+(3*1)+(2*5)+(1*8)=176
176 % 10 = 6
So 861721-58-6 is a valid CAS Registry Number.

861721-58-6Relevant articles and documents

Facile preparation of difluoromethyl- and monofluoromethyl-containing amides via Ritter reaction

Liu, Jun,Ni, Chuanfa,Li, Ya,Zhang, Laijun,Wang, Guanyu,Hu, Jinbo

, p. 6753 - 6756 (2007/10/03)

Both secondary and tertiary difluoromethylated carbinols were found to readily react with acetonitrile under the catalysis of concentrated sulfuric acid to give the corresponding difluoromethylated acetamides in good yields, which is remarkably more effic

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