42028-44-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42028-44-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,0,2 and 8 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 42028-44:
(7*4)+(6*2)+(5*0)+(4*2)+(3*8)+(2*4)+(1*4)=84
84 % 10 = 4
So 42028-44-4 is a valid CAS Registry Number.
42028-44-4Relevant articles and documents
REACTIONS OF RfI(Ph)OSO2CF3 WITH ALKENES AND ALKADIENES
Umemoto, Teruo,Kuriu, Yuriko,Nakayama, Shin-ichi
, p. 1169 - 1172 (2007/10/02)
A successful cationic perfluoroalkylation of alkenes and alkadienes with RfI(Ph)OSO2CF3 was described.The reactivity of RfI(Ph)OSO3H was also examined.