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31059-20-8

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31059-20-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 31059-20-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,0,5 and 9 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 31059-20:
(7*3)+(6*1)+(5*0)+(4*5)+(3*9)+(2*2)+(1*0)=78
78 % 10 = 8
So 31059-20-8 is a valid CAS Registry Number.

31059-20-8Relevant articles and documents

Bismuth(III)-catalyzed dehydrative etherification and thioetherification of phenolic hydroxy groups

Murai, Masahito,Origuchi, Kazuki,Takai, Kazuhiko

, p. 3828 - 3831 (2014)

Use of a bismuth catalyst allowed efficient dehydrative substitution of phenolic hydroxy groups with alcohols and thiols to form C-O and C-S bonds. The reaction required equimolar amounts of two readily available substrates that generated H2O as the only byproduct. The relatively mild reaction conditions were compatible with the functional groups selected, and provided excellent chemoselectivity.

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