81961-58-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81961-58-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,9,6 and 1 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 81961-58:
(7*8)+(6*1)+(5*9)+(4*6)+(3*1)+(2*5)+(1*8)=152
152 % 10 = 2
So 81961-58-2 is a valid CAS Registry Number.
81961-58-2Relevant articles and documents
Fluorinated olefins and oleum
Cheburkov, Yuri,Lamanna, William M.
, p. 147 - 152 (2007/10/03)
Oleum has some advantages over pure sulfur trioxide and may be successfully used for preparation of beta-sultones from hexafluoropropene, 2H-pentafluoropropene, 6H-perfluoro-1-hexene and perfluoro(propylvinyl) ether (VE). Depending on the reaction conditi
