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271244-47-4

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271244-47-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 271244-47-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,7,1,2,4 and 4 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 271244-47:
(8*2)+(7*7)+(6*1)+(5*2)+(4*4)+(3*4)+(2*4)+(1*7)=124
124 % 10 = 4
So 271244-47-4 is a valid CAS Registry Number.

271244-47-4Downstream Products

271244-47-4Relevant academic research and scientific papers

First asymmetric intermolecular bromoesterification catalyzed by chiral Bronsted acid

Li, Guang-Xun,Fu, Qing-Quan,Zhang, Xiao-Mei,Jiang, Jun,Tang, Zhuo

, p. 245 - 251 (2012)

The first successful enantioselective intermolecular bromoesterification was realized by using a chiral phosphoric acid as a catalyst. The reaction was optimized after screening 2-aminopyridine based basic catalysts, cinchona alkaloid based basic catalyst

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