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32189-59-6

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32189-59-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 32189-59-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,2,1,8 and 9 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 32189-59:
(7*3)+(6*2)+(5*1)+(4*8)+(3*9)+(2*5)+(1*9)=116
116 % 10 = 6
So 32189-59-6 is a valid CAS Registry Number.

32189-59-6Relevant articles and documents

Method For Preparing Formamidines

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Paragraph 0109; 0110; 0114, (2015/11/09)

A method for preparing formamidines of formula (I) in a single step by reducing ureas of formula (II) using silanes of formula (III), according to reaction (II)+(III)+(I) is provided. The present invention also provides a method for preparing insecticides

Amidines. Part 32. Influence of Substitution at the Amino Nitrogen Atom on the Sensitivity to Substitution at the Imino Nitrogen Atom. pKa Values of N1-Methyl-N1-phenylformamidines in Water-Ethanol Solutions

Oszczapowicz, Janusz,Kuminska, Mariola

, p. 103 - 108 (2007/10/02)

A series of new N1-methyl-N1-phenylformamidines (RN=CH-NMeC6H5, 13 compounds) containing variable substituents at the imino nitrogen atom has been synthesized.The pKa values of the compounds have been measured in four binary ethanol-water solvents and correlated with Hammett-type substituent constants, and with pKa values of the corresponding primary amines determined in the same solvents.It is shown that substitution at the amino nitrogen atom has considerable influence on the sensitivity of the amidino group to the polar effects of substituents at the iminonitrogen atom.The parameters for both types of regression depend on the solvent.The equation for prediction of the pKa values for trisubstituted amidines, enabling explanation of changes in the ρ values for substitution at one site caused by substitution at the other two sites, is derived.

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