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132931-58-9

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132931-58-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 132931-58-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,2,9,3 and 1 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 132931-58:
(8*1)+(7*3)+(6*2)+(5*9)+(4*3)+(3*1)+(2*5)+(1*8)=119
119 % 10 = 9
So 132931-58-9 is a valid CAS Registry Number.

132931-58-9Downstream Products

132931-58-9Relevant articles and documents

1,3-CYCLOADDITION OF SUBSTITUTED BENZONITRILE OXIDES TO 1,4-DIARYL-1-AZA-1,3-BUTADIENES. A KINETIC STUDY.

Cadoni, Enzo,Gelli, Gioanna,Beltrame, Paolo

, p. 679 - 684 (2007/10/02)

Stable aryl nitrile oxides undergo cycloaddition to diarylazabutadienes at the C=N bond, giving rise to 3,4,5-trisubstituted 1,2,4-oxadiazolines, with less than quantitative yields due to the partial oligomerization of the nitrile oxides, under the influence of the azadienes.The reaction kinetics of the cycloaddition was measured at temperatures in the range 40-80 deg C, taking into account the actual yield.Rates were enhanced by increasing the solvent polarity.The Hammett correlation was best applied for substitution on the benzene ring at the nitrogen on the azadiene, finding negative ρ values.

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