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89861-53-0

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89861-53-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 89861-53-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,8,6 and 1 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 89861-53:
(7*8)+(6*9)+(5*8)+(4*6)+(3*1)+(2*5)+(1*3)=190
190 % 10 = 0
So 89861-53-0 is a valid CAS Registry Number.

89861-53-0Relevant articles and documents

The Invention of New Radical Chain Reactions. Part 9. Further Radical Chemistry of Thiohydroxamic Esters; Formation of Carbon-Carbon Bonds

Barton, Derek H.R.,Crich, David,Kretzschmar, Gerhard

, p. 39 - 54 (2007/10/02)

Carbon radicals derived from the esters of several types of thiohydroxamic acids have been trapped in a number of different ways.Particular attention has been paid to carbon-carbon bond formation by addition to suitably activated ethylenic linkages.Carboxylic acids can be conveniently converted into homo- and bishomo-acids by free radical chemistry based on thiohydroxamic esters.In a coda the tautomerism of the thiohydroxamic acids have been examined by physical methods.It is confirmed that the esters used are derivatives of the thione tautomer.

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