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33906-65-9

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33906-65-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 33906-65-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,9,0 and 6 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 33906-65:
(7*3)+(6*3)+(5*9)+(4*0)+(3*6)+(2*6)+(1*5)=119
119 % 10 = 9
So 33906-65-9 is a valid CAS Registry Number.

33906-65-9Relevant academic research and scientific papers

KINETICS OF THE REACTION OF 2-(2,4-DINITROPHENOXY)-N-ETHYLPYRIDINIUM TETRAPHENYLBORATE WITH AROMATIC AMINES IN ACETONITRILE

Titskii, G. D.,Mitchenko, E. S.,Dubovaya, A. A.

, p. 1945 - 1949 (2007/10/02)

The reactions of 2-(2,4-dinitrophenoxy)-N-ethylpyridinium salts with arylamines take place by nucleophilic substitution at a carbon atom of the benzene ring with the formation of 2,4-dinitrodiphenylamine derivatives.The sensitivity coefficient (ρ0) to the induction effect of the substituents in the arylamine does not depend on the temperature in the range of 10-55 deg C and is equal to -6.89.The constant of the leaving group (τAr) for the 2-hydroxy-N-ethylpyridinium cation amounts to 1.66.

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