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107996-83-8

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107996-83-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 107996-83-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,7,9,9 and 6 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 107996-83:
(8*1)+(7*0)+(6*7)+(5*9)+(4*9)+(3*6)+(2*8)+(1*3)=168
168 % 10 = 8
So 107996-83-8 is a valid CAS Registry Number.

107996-83-8Relevant articles and documents

Synthesis of 4'-Vinylbenzo-3n-crown-n Ethers (4<=n<=10)

Talma, Auke G.,Vossen, Huib van,Sudhoelter, Ernst J. R.,Eerden, Johan van,Reinhoudt, David N.

, p. 680 - 683 (1986)

4'-Vinylbenzo-3n-crown-n ethers (4=n=10) are prepared by a "Cs-templated" cyclization reaction of catechol with dimesylates of oligoethylene glycols, acetylation of the resultant benzo-3n-crown-n ethers (4=n=10), reduction of the acyl group, and dehydration of the resultant alcohols with pyridinium tosylate.

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