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693792-77-7

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693792-77-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 693792-77-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,9,3,7,9 and 2 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 693792-77:
(8*6)+(7*9)+(6*3)+(5*7)+(4*9)+(3*2)+(2*7)+(1*7)=227
227 % 10 = 7
So 693792-77-7 is a valid CAS Registry Number.

693792-77-7Relevant articles and documents

Effect of substituent structure on pyrimidine electrophilic substitution

van der Westhuyzen, Christiaan W.,Rousseau, Amanda L.,Parkinson, Christopher J.

, p. 5394 - 5405 (2007)

In an investigation into the electrophilic nitrosation reactions of a series of 4,6-disubstituted pyrimidine derivatives, a subtle interplay between the electronic nature of the C-4 and C-6 substituents and reactivity was found where these were chloro-, mono- or disubstituted amino groups. Effects such as the presence of an aryl group or two alkyl groups on the amino moiety impede the progress of the reaction despite the presence of a second activating group.

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