128309-71-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128309-71-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,3,0 and 9 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 128309-71:
(8*1)+(7*2)+(6*8)+(5*3)+(4*0)+(3*9)+(2*7)+(1*1)=127
127 % 10 = 7
So 128309-71-7 is a valid CAS Registry Number.
128309-71-7Relevant articles and documents
Reaction of 1,1-dicyano-2,2-bis(trifluoromethyl)ethylene with arylamines
Komarov,Chkanikov,Galakhov,Kolomietz,Fokin
, p. 59 - 69 (2007/10/02)
We have studied the nature and determined the application boundaries of C-alkylation of various arylamines and their derivatives with 1,1-dicyano-2,2-bis(trifluoromethyl)ethylene. The possibility of formation in these reactions of heterocyclic vicinal ena