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93053-63-5

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93053-63-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 93053-63-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,3,0,5 and 3 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 93053-63:
(7*9)+(6*3)+(5*0)+(4*5)+(3*3)+(2*6)+(1*3)=125
125 % 10 = 5
So 93053-63-5 is a valid CAS Registry Number.

93053-63-5Relevant articles and documents

BASICITY AND STRUCTURE OF 5-HYDROXYBENZIMIDAZOLES IN NITROMETHANE

Korolev, B. A.,Osmolovskaya, L. A.,Kuznetsov, Yu. V.,Stolyarova, L. G.,Smirnov, L. D.

, p. 333 - 336 (2007/10/02)

Examination of the acid-base properties of 5-hydroxybenzimidazoles has shown them to exist in nitromethane as the 5-hydroxy-tautomers.Substituents in the 2-position have a predominantly inductive effect on the basicity of the 3-nitrogen, rationalized as in other nitrogen heterocycles by the proximity of the substituents to the reaction center. Keywords: 5-hydroxybenzimidazole, its tautomers and derivatives; acid-base properties and the effect thereon of substituents; Taft and inductive constants.

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