Cas 1258865-56-3,C18H17N3O2

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Check Digit Verification of cas no

The CAS Registry Mumber 1258865-56-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,8,8,6 and 5 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1258865-56:
(9*1)+(8*2)+(7*5)+(6*8)+(5*8)+(4*6)+(3*5)+(2*5)+(1*6)=203
203 % 10 = 3
So 1258865-56-3 is a valid CAS Registry Number.

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1258865-56-3Relevant academic research and scientific papers

Aza-Michael addition of acrylonitrile with 2-aryloxymethylbenzimidazole derivatives under microwave irradiation

Wei, Tai-Bao,Hua, Mao-Tang,Shi, Hai-Xiong,Liu, Yong,Zhang, You-Ming

, p. 452 - 454 (2010)

A simple, rapid, and highly efficient method has been developed for the aza-Michael addition of acrylonitrile to 2-aryl-oxymethylbenzimidazole derivatives in the presence of anhydrous potassium carbonate under microwave irradiation. A series novel of 1-cyanoethyl-2-aryloxymethylbenzimidazole derivatives have been prepared and characterised by 1H NMR, 13C NMR, IR spectra and elemental analysis.

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