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123931-20-4

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123931-20-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 123931-20-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,9,3 and 1 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 123931-20:
(8*1)+(7*2)+(6*3)+(5*9)+(4*3)+(3*1)+(2*2)+(1*0)=104
104 % 10 = 4
So 123931-20-4 is a valid CAS Registry Number.

123931-20-4Downstream Products

123931-20-4Relevant articles and documents

Studies on Electron Transfer as Mechanistic Concept for Cycloadditions, 1. Cycloadditions of 1,4-Bis(dimethylamino)-1,3-butadiene to Electron-Deficient Olefins

Luecking, Karin,Rese, Michael,Sustmann, Reiner

, p. 1129 - 1138 (2007/10/02)

(E,E)-1 and (E,Z)-1,4-bis(dimethylamino)-1,3-butadiene (2) as model systems for highly electron-rich dienes were allowed to react with olefins of increasing electron-acceptor capacity under standard concentrations (0.4 M solutions of diene and dienophile)

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