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74663-93-7

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74663-93-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 74663-93-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,6,6 and 3 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 74663-93:
(7*7)+(6*4)+(5*6)+(4*6)+(3*3)+(2*9)+(1*3)=157
157 % 10 = 7
So 74663-93-7 is a valid CAS Registry Number.

74663-93-7Downstream Products

74663-93-7Relevant articles and documents

Catalytic synthesis and transformations of magnesacycloalkanes 3. Cyclomagnesation of norbornenes catalyzed by Cp2ZrCl2

Dzhemilev, U. M.,Sultanov, R. M.,Gaimaldinov, R. G.

, p. 149 - 153 (1993)

Catalytic cyclometallation of bicyclohept-2-ene, spirohept-2-ene-7.1'-cyclopropane> and endo-tricyclo2,6>deca-3,8-diene (dicyclopentadiene) with R2Mg (R = n-Pr, n-Bu) leading to the formation of polycyclic magnesacyclopentanes (MC) has been studied.The yield of MC and the selectivity of the reaction have been shown to depend on the ratio of starting reagents, the solvent, and temperature.The most probable scheme of the transformation studied is proposed.

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