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17931-11-2

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17931-11-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 17931-11-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,9,3 and 1 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 17931-11:
(7*1)+(6*7)+(5*9)+(4*3)+(3*1)+(2*1)+(1*1)=112
112 % 10 = 2
So 17931-11-2 is a valid CAS Registry Number.

17931-11-2Relevant articles and documents

One pot synthesis of substituted imidazopyridines and thiazoles from styrenes in water assisted by NBS

Shinde, Mahesh H.,Kshirsagar, Umesh A.

, p. 1455 - 1458 (2016)

Heating of commercially available styrenes with NBS in water followed by reaction with 2-aminopyridines or thioamides afforded important heterocyclic scaffolds in a one pot procedure. The reaction proceeds via co-oxidant free, in situ formation of α-bromoketone using NBS as a bromine source as well as an oxidant followed by trapping with suitable nucleophiles to provide imidazopyridines and thiazoles.

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