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91967-56-5

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91967-56-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91967-56-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,9,6 and 7 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 91967-56:
(7*9)+(6*1)+(5*9)+(4*6)+(3*7)+(2*5)+(1*6)=175
175 % 10 = 5
So 91967-56-5 is a valid CAS Registry Number.

91967-56-5Downstream Products

91967-56-5Relevant articles and documents

Kinetics and Regioselectivity of the Autoxidation of o-Substituted Isopropyl Aromatics

Heinze, Antje,Lauterbach, Gerlinde,Pritzkow, Wilhelm,Schmidt-Renner, Wolfgang,Voerckel, Volkmar,Zewegsuren, Nansadyn

, p. 439 - 446 (2007/10/02)

The relative chain propagation constants and the regioselectivities of the oxidations of o-cymene and 2-isopropyl-1,4-dimethylbenzene were determined by competitive oxidations of the hydrocarbons with cumene.As expected, the reactivity of the tertiary C-H bond of the isopropyl group is considerably decreased by o-methyl groups.Also in α-isopropylnaphthalene a considerable decrease in the reactivity of the tertiary C-H bond takes place.The decrease of the chain propagation constants effects a decrease of the oxidabilities of o-substituted isopropyl aromatics.In the case of the methyl isopropyl benzenes the increase of the chain termination constants by primary peroxy radicals must also be taken into consideration.This results in a decrease of the oxidabilities which can be observed even in p-cymene (in comparison with cumene).

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