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83425-77-8

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83425-77-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 83425-77-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,4,2 and 5 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 83425-77:
(7*8)+(6*3)+(5*4)+(4*2)+(3*5)+(2*7)+(1*7)=138
138 % 10 = 8
So 83425-77-8 is a valid CAS Registry Number.

83425-77-8Relevant articles and documents

REACTIVITY OF CARBANIONS. XII. REACTION OF ALKALINE SALTS OF TRIARYLMETHANES WITH 1-BROMOBUTANE

Solov'yanov, A. A.,Karpyuk, A. D.,Beletskaya, I. P.,Reutov, O. A.

, p. 1188 - 1193 (2007/10/02)

The lithium and cesium salts of tri(p-anisyl)methane, diphenyl(2-pyridyl)methane, diphenyl(4-pyridyl)methane, and diphenylacetonitrile in dimethoxyethane exist as an equilibrium mixture of ion pairs, predominantly of the contact pair type, and free ions.Relative to the alkylation of these alkaline salts by 1-bromobutane, the reactivity of the carbanions (ki) increases in the series: diphenylcyanomethyl .The reactivity of the carbanions is from one to three orders of magnitude greater than the rectivity of the ion pairs depending on the structure of the carbanion and cation size.

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