84671-66-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 84671-66-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,6,7 and 1 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 84671-66:
(7*8)+(6*4)+(5*6)+(4*7)+(3*1)+(2*6)+(1*6)=159
159 % 10 = 9
So 84671-66-9 is a valid CAS Registry Number.
84671-66-9Relevant articles and documents
Push-Pull-Butadienes. VI. Synthesis of Substituted Nicotinonitriles
Peseke, K.,Michalik, M.,Schoenhusen, U.
, p. 856 - 866 (2007/10/02)
2-Aryl-4,4-bis(methylthio)-1,3-butadiene-1,1-dicarbonitriles 1 react with N-bromo-succinimide or sulphuryl chloride to give 3-bromo- and 3-chlorobutadienedicarbonitriles 3, respectively.Compounds 1 or 3 can be converted with methanethiol in alkaline solut