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66200-76-8

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66200-76-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 66200-76-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,2,0 and 0 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 66200-76:
(7*6)+(6*6)+(5*2)+(4*0)+(3*0)+(2*7)+(1*6)=108
108 % 10 = 8
So 66200-76-8 is a valid CAS Registry Number.

66200-76-8Downstream Products

66200-76-8Relevant articles and documents

Nouvelles voies d'acces a des aryl-4 thienopyridines et a des aryl-7 thienopyridines

Maffrand, Jean-Pierre,Biogegrain, Robert,Courregelongue, Jean,Ferrand, Gerard,Frehel, Daniel

, p. 727 - 734 (2007/10/02)

4-Arylthienopyridines and 7-arylthienopyridines have been prepared by heating in polyphosphoric acid 2-(2-thenylamino)-1-arylethanols or propanols and 2-(3-thenylamino)-1-arylethanols and propanols, respectively.Under the Beckmann rearrangement conditions, oximes of 4-aryl-4,5-dihydro-6H-cyclopentathiophen-6-one lead to 4-aryl-4,5-dihydro-6H-thienopyridin-7-one.

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