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63730-86-9

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63730-86-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 63730-86-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,3,7,3 and 0 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 63730-86:
(7*6)+(6*3)+(5*7)+(4*3)+(3*0)+(2*8)+(1*6)=129
129 % 10 = 9
So 63730-86-9 is a valid CAS Registry Number.

63730-86-9Relevant articles and documents

SYNTHESIS AND REACTIVITY OF A STABLE PRECURSOR OF 2-CYANO-1,3-BUTADIENE

Baraldi, Pier Giovanni,Barco, Achille,Benetti, Simonetta,Manfredini, Stefano,Pollini, Gian Piero,et.al.

, p. 6451 - 6454 (2007/10/02)

A new, productive synthesis of 3-cyano-2,5-dihydrothiophene-1,1-dioxide (3) is described.This substituted sulfolene serves as a stable precursor of 2-cyano-1,3-butadiene and can be used in the Diels-Alder reactions without isolation of the unstable diene.The Diels-Alder reactions of 2-cyano-1,3-butadiene appear to proceed in high yield only with electron-deficient dienophiles, but (13)C NMR shows that in some cases the products are a mixture of regioisomeric cycloadducts.

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