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943117-82-6

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943117-82-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 943117-82-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,4,3,1,1 and 7 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 943117-82:
(8*9)+(7*4)+(6*3)+(5*1)+(4*1)+(3*7)+(2*8)+(1*2)=166
166 % 10 = 6
So 943117-82-6 is a valid CAS Registry Number.

943117-82-6Relevant articles and documents

A facile synthesis of tetracyclic benzo-pyridonaphthyridines by domino reaction

Basetti, Vishnu,Pallepati, Rangarao,Hosahalli, Subramanya,Potluri, Vijay

, p. 2014 - 2017 (2013)

A novel methodology for the synthesis of tetracyclic benzo- pyridonaphthyridines, forming a C-C and a C-N bond in concentrated sulfuric acid at 70 °C in a one-pot is reported. The key substrates (9a-m) are prepared by reacting 2-chloro-6-(4-fluorophenyl)-4-methylnicotinenitrile (7) with various anilines followed by dimethylformamide dimethylacetal. The domino reaction is initiated by the protonation of the b-carbon of the enamine group in 9a-m and terminated by the elimination of dimethylamine.

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