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921767-14-8

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921767-14-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 921767-14-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,2,1,7,6 and 7 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 921767-14:
(8*9)+(7*2)+(6*1)+(5*7)+(4*6)+(3*7)+(2*1)+(1*4)=178
178 % 10 = 8
So 921767-14-8 is a valid CAS Registry Number.

921767-14-8Relevant articles and documents

Asymmetric Mannich reaction of dicarbonyl compounds with α-amido sulfones catalyzed by cinchona alkaloids and synthesis of chiral dihydropyrimidones

Lou, Sha,Dai, Peng,Schaus, Scott E.

, p. 9998 - 10008 (2008/04/05)

(Chemical Equation Presented) The highly enantioselective cinchona alkaloid-catalyzed Mannich reaction of dicarbonyl compounds with α-amido sulfones as acyl imine precursors is described. The reaction requires 10 mol % of the cinchona alkaloid catalyst, w

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