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31568-62-4

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31568-62-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 31568-62-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,5,6 and 8 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 31568-62:
(7*3)+(6*1)+(5*5)+(4*6)+(3*8)+(2*6)+(1*2)=114
114 % 10 = 4
So 31568-62-4 is a valid CAS Registry Number.

31568-62-4Relevant articles and documents

Tautomerism and stereodynamics of indophenols, amidines, their derivatives, and analogs: XIV. New methods of synthesis of spiro-fused quinoxalines

Kurbatov,Vikrishchuk,Simakov,Kuznetsov,Zhdanov,Olekhnovich

, p. 950 - 955 (2007/10/03)

A new procedure was proposed for synthesis of quinoxaline derivatives by N-alkylation of 2,6-ditert-butyl-4-(o-R-sulfonylaminophenylimino)-2,5-cyclohexadienones and subsequent intramolecular spirocyclization. A necessary condition for the reaction to occu

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