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86692-92-4

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86692-92-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 86692-92-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,6,6,9 and 2 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 86692-92:
(7*8)+(6*6)+(5*6)+(4*9)+(3*2)+(2*9)+(1*2)=184
184 % 10 = 4
So 86692-92-4 is a valid CAS Registry Number.

86692-92-4Relevant articles and documents

Oxidativ Coupling of Phenols. Part 6. A Study of the Role of Spin Density Factors on the Product Composition in the Oxidations of 3,5-Dimethylphenol and Phenol

Armstrong, David R.,Cameron, Colin,Nonhebel, Derek C.,Perkins, Peter G.

, p. 563 - 568 (2007/10/02)

Oxidations of both 3,5-dimethyphenol and phenol with di-t-butyl peroxide at 140 degC gave as the major product the ortho-ortho-C-C coupled dimer, while oxidations with di-t-butyl peroxyoxalate at room temperature give much more of the ortho-para-C-C dimer.The results are not consistent either with the spin density distribution in the phenoxyl radical intermediates or with steric effects being the major factor which determines the product composition.It is proposed that the two phenoxyl radicals involved in coupling preferentially approach each other in a 'sandwich like' manner with the oxigens in a 1,3-relationship.

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