Cas 138963-33-4,2-<(2,4-dinitrophenyl)(4-methylbenzoyl)methylene>hexahydropyrimidine

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Check Digit Verification of cas no

The CAS Registry Mumber 138963-33-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,9,6 and 3 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 138963-33:
(8*1)+(7*3)+(6*8)+(5*9)+(4*6)+(3*3)+(2*3)+(1*3)=164
164 % 10 = 4
So 138963-33-4 is a valid CAS Registry Number.

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138963-33-4Relevant academic research and scientific papers

Arylation of Heterocyclic Ketene Aminals with 2,4-Dinitrohalobenzenes by a Radical Nucleophilic Substitution Mechanism

Zhao, Wen-Yi,Huang, Zhi-Tang

, p. 1967 - 1970 (2007/10/02)

The anions of heterocyclic ketene aminals reacted with 2,4-dinitrohalobenzenes to give arylated products by a radical nucleophilic substitution mechanism.The SRN1 mechanism was confirmed by EPR spectroscopy, EPR spin trapping, and by depression of the reaction rate by the addition of an inhibitor.

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