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847659-70-5

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847659-70-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 847659-70-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,4,7,6,5 and 9 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 847659-70:
(8*8)+(7*4)+(6*7)+(5*6)+(4*5)+(3*9)+(2*7)+(1*0)=225
225 % 10 = 5
So 847659-70-5 is a valid CAS Registry Number.

847659-70-5Relevant articles and documents

Zinc-catalyzed cycloisomerizations. Synthesis of substituted furans and furopyrimidine nucleosides

Sniady, Adam,Durham, Audrey,Morreale, Marco S.,Marcinek, Andrzej,Szafert, Slawomir,Lis, Tadeusz,Brzezinska, Krystyna R.,Iwasaki, Takanori,Ohshima, Takashi,Mashima, Kazushi,Dembinski, Roman

, p. 5881 - 5889 (2008/12/21)

(Chemical Equation Presented) 5-Endo-dig cycloisomerization of 1,4- and 1,2,4- mostly aryl-substituted but-3-yn-1-ones in the presence of a catalytic amount of zinc chloride etherate (10 mol %) in dichloromethane at room temperature gave 2,5-di- and 2,3,5

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