70557-89-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 70557-89-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,5,5 and 7 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 70557-89:
(7*7)+(6*0)+(5*5)+(4*5)+(3*7)+(2*8)+(1*9)=140
140 % 10 = 0
So 70557-89-0 is a valid CAS Registry Number.
70557-89-0Relevant articles and documents
A widely varying range of products in reactions of C6F5BrF2, C6F5IF2, and C6F5IF4 with Lewis acids of different strength
Frohn, Hermann-Josef,Bailly, Frank,Welting, Dirk,Bardin, Vadim V.
experimental part, p. 301 - 307 (2009/12/04)
The relative fluoride donor ability: C6F5BrF2 > C6F5IF2 > C6F5IF4 was outlined from reactions with Lewis acids of graduated strength in different solvents.
