138888-97-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138888-97-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,8,8 and 8 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 138888-97:
(8*1)+(7*3)+(6*8)+(5*8)+(4*8)+(3*8)+(2*9)+(1*7)=198
198 % 10 = 8
So 138888-97-8 is a valid CAS Registry Number.
138888-97-8Relevant articles and documents
Photolysis of Tris(4-tert-butoxycarbonyloxyphenyl)Sulphonium Salts. A Mechanistic Study
Schwalm, Reinhold,Bug, Ruth,Dai, Guang-Song,Fritz, Peter M.,Reinhardt, Michael,et al.
, p. 1803 - 1808 (1991)
Tris(4-tert-butoxycarbonyloxyphenyl)sulphonium salts of the structure Ar3S+X- (X- : CF3SO3- or AsF6-) were irradiated with UV light in acetonitrile or dimethyl sulphoxide solution.Product analysis by