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20493-62-3

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20493-62-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20493-62-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,4,9 and 3 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 20493-62:
(7*2)+(6*0)+(5*4)+(4*9)+(3*3)+(2*6)+(1*2)=93
93 % 10 = 3
So 20493-62-3 is a valid CAS Registry Number.

20493-62-3Downstream Products

20493-62-3Relevant articles and documents

The reaction of 1,3-disubstituted benzimidazolium salts with Grignard reagents and a novel synthetic method for aldehydes

Shi, Zhen,Gu, Huan

, p. 4175 - 4179 (2007/10/03)

Aliphatic and aromatic Grignard reagents have been found to add to the double bond of 1,3-disubstituted benzimidazolium salts.The resulting substituted benzimidazolines were hydrolyzed and the aldehydes converted directly to their 2,4-dinitrophenylhydrazone derivatives.The scope and limitation of this synthesis are discussed.

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