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21066-69-3

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21066-69-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21066-69-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,0,6 and 6 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 21066-69:
(7*2)+(6*1)+(5*0)+(4*6)+(3*6)+(2*6)+(1*9)=83
83 % 10 = 3
So 21066-69-3 is a valid CAS Registry Number.

21066-69-3Relevant articles and documents

Veretherungen von Diolen, Triolen und Hydroxycarbonsaeurederivaten ueber Thallium(I)-alkoholate. Eine neue Variante der Williamson-Reaktion

Kalinowski, Hans-Otto,Crass, Gerhard,Seebach, Dieter

, p. 477 - 487 (2007/10/02)

The etherifications listed in tables 1 and 2 are achieved by converting hydroxy-derivatives, which contain additional oxygen functions, into thallium(I) alkoxides with thallium ethoxide, and treatment with haloalkanes.The scope and limitations of the method are discussed.

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