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143468-08-0

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143468-08-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 143468-08-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,4,6 and 8 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 143468-08:
(8*1)+(7*4)+(6*3)+(5*4)+(4*6)+(3*8)+(2*0)+(1*8)=130
130 % 10 = 0
So 143468-08-0 is a valid CAS Registry Number.

143468-08-0Relevant articles and documents

Preparation method of 6-cyano-7-azaindole and derivative thereof

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Paragraph 0030-0032, (2020/09/30)

The invention discloses a preparation method of 6-cyano-7-azaindole and a derivative thereof, which comprises the following steps: dissolving a compound represented by formula (1) in a solvent, and performing a reaction with an organic alkali and a cyaniding reagent under the action of a catalyst to obtain the final product represented by formula (2). According to the process disclosed by the invention, the safe and non-toxic potassium ferrocyanide is used as a cyano source, the reaction operation is simple and convenient, the yield is high, the influence on the environment is relatively small, and the process is suitable for preparing the 6-cyano-7-azaindole and the derivative 1-benzoyl-6-cyano-7-azaindole thereof on a large scale.

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