198140-97-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 198140-97-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,8,1,4 and 0 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 198140-97:
(8*1)+(7*9)+(6*8)+(5*1)+(4*4)+(3*0)+(2*9)+(1*7)=165
165 % 10 = 5
So 198140-97-5 is a valid CAS Registry Number.
198140-97-5Relevant articles and documents
Halogeno and pseudohalogeno difluoromethanesulfonylfluorides
Volkov,Nazaretian,Yagupolskii
, p. 135 - 139 (1997)
New substituted cyano- and isocyanatodifluoromethanesulfonylfluorides were synthesized and their properties compared with halogenodifluoromethanesulfonylfluorides. NMR parameters are related to the electronegativity and covalent radii of substitutents.