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82946-81-4

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82946-81-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 82946-81-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,9,4 and 6 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 82946-81:
(7*8)+(6*2)+(5*9)+(4*4)+(3*6)+(2*8)+(1*1)=164
164 % 10 = 4
So 82946-81-4 is a valid CAS Registry Number.

82946-81-4Relevant articles and documents

Electrophilic ipso-Substitutions. Part 2. Reactions of 3-Substituted Indoles and 4-Substituted NN-Dimethylanilines with Arenediazonium Ions

Colonna, Martino,Greci, Lucedio,Poloni, Marino

, p. 455 - 460 (2007/10/02)

3-Substituted indoles and 4-substituted NN-dimethylanilines react with arenediazonium ions to form 3-arylazo-indoles and 4-arylazo-NN-dimethylanilines, respectively.The formation of the ?-complex intermediate was interpreted both as electrophilic ipso-attack and as coupling of two radicals deriving from an electron transfer process.Both mechanisms are discussed on the basis of the experimental evidence and on the substrate oxidation potentials.The leaving abilities of the substituents are discussed on the basis of the experimental results.

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