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172879-41-3

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172879-41-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 172879-41-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,2,8,7 and 9 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 172879-41:
(8*1)+(7*7)+(6*2)+(5*8)+(4*7)+(3*9)+(2*4)+(1*1)=173
173 % 10 = 3
So 172879-41-3 is a valid CAS Registry Number.

172879-41-3Relevant articles and documents

A Regiospecific Reaction of Pyridazines with Vicarious Nucleophilic Substitution via Their Dicyanomethylide Derivatives

Itoh, Takashi,Matsuya, Yuji,Nagata, Kazuhiro,Okada, Mamiko,Ohsawa, Akio

, p. 2067 - 2068 (1995)

The phenyl(or p-tolyl)sulfonylmethyl group is introduced with complete regiospecificity to the C-4 position of 3-substituted pyridazines using vicarious nucleophilic substitution of pyridazinium dicyanomethylides.

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