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423166-08-9

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423166-08-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 423166-08-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,2,3,1,6 and 6 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 423166-08:
(8*4)+(7*2)+(6*3)+(5*1)+(4*6)+(3*6)+(2*0)+(1*8)=119
119 % 10 = 9
So 423166-08-9 is a valid CAS Registry Number.

423166-08-9Relevant articles and documents

Preparation of Substituted Piperazinones via Tandem Reductive Amination-(N,N′-Acyl Transfer)-Cyclization

Beshore, Douglas C.,Dinsmore, Christopher J.

, p. 1201 - 1204 (2007/10/03)

matrix presented A one-pot, tandem reductive amination-transamidation-cyclization reaction was employed to produce substituted piperazin-2-ones in good yields. Various amino acid methyl esters and transferable acyl groups were examined to establish the re

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