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77079-61-9

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77079-61-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77079-61-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,0,7 and 9 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 77079-61:
(7*7)+(6*7)+(5*0)+(4*7)+(3*9)+(2*6)+(1*1)=159
159 % 10 = 9
So 77079-61-9 is a valid CAS Registry Number.

77079-61-9Relevant articles and documents

Reactions of Benzenediazonium Ions with Adenine and Its Derivatives

Chin, Anton,Hung, Ming-Hong,Stock, Leon M.

, p. 2203 - 2207 (2007/10/02)

Adenine, adenosine, and 5'-adenylic acid react readily with benzenediazonium ion and its derivatives at pH 8-11 to yield derivatives of (E)-6-(3-phenyl-2-triazen-1-yl)purine.The structural assignments for these compounds, some of which are unstable, are based on their spectroscopic properties and their degradation reactions in acid solution and with sodium dithionite to yield 6-hydrazinopurine.The triazenes decompose in basic aqueous solution at 60-90 deg C to produce 8-aryladenines.For adenosine and 5'-adenylic acid, the ribose residues are cleaved during this process.Several lines of evidence indicate that the triazenes are converted to 8-aryladenines in intermolecular processes.Both the benzenediazonium ion and the phenyl radical can be intercepted during the reaction.Consequently, the phenylation reaction may be confidently formulated as an intermolecular free-radical substitution reaction.

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