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157842-83-6

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157842-83-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 157842-83-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,8,4 and 2 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 157842-83:
(8*1)+(7*5)+(6*7)+(5*8)+(4*4)+(3*2)+(2*8)+(1*3)=166
166 % 10 = 6
So 157842-83-6 is a valid CAS Registry Number.

157842-83-6Downstream Products

157842-83-6Relevant articles and documents

A method for synthesis of indole compounds

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Paragraph 0024; 0058-0060, (2017/01/05)

The invention provides a method for synthesizing an indole compound. The method comprises the following steps of adding alkali into 2-acyl-N,N-disubstituted phenylamine which serves as a raw material under the protection of nitrogen, and heating the mixture in a solvent to obtain the high-yield indole compound. The raw material is readily available, and the method is convenient to operate, short in reaction time and high in reaction yield, and has high practical value for the industrial preparation of the indole compound.

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