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68525-40-6

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68525-40-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 68525-40-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,8,5,2 and 5 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 68525-40:
(7*6)+(6*8)+(5*5)+(4*2)+(3*5)+(2*4)+(1*0)=146
146 % 10 = 6
So 68525-40-6 is a valid CAS Registry Number.

68525-40-6Downstream Products

68525-40-6Relevant articles and documents

The Nucleophilicity of Superoxide towards Different Alkyl Halides Estimated from Kinetic Measurements

Daasbjerg, Kim,Lund, Henning

, p. 597 - 604 (2007/10/02)

Values of the rate constant ksub are measured for the substitution reaction between superoxide O2 anion-radical and the alkyl halides butyl chloride, 2-butyl chloride, benzyl chloride, ethyl bromide, butyl bromide, 2-butyl bromide, neopentyl bromide, benzyl bromide, (1-bromo-2,2-dimethylpropyl)benzene and 1-iodoadamantane.These rate constants are compared with the expected rate constant kET for the electron transfer reaction between the same alkyl halides and an aromatic anion radical A anion-radical with the same standard oxidation potential as O2 anion-radical.The ksub/kET ratios show that the mechanism of the substitution reaction amy shift from SN2-like to ET-like on changes in the steric hindrance and the acceptor ability of the alkyl halide.The influence on ksub/kET of the difference in self-exchange reorganization energy λ(0) between O2 anion-radical/O2 and A anion-radical/A is discussed.

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