217456-68-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 217456-68-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,7,4,5 and 6 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 217456-68:
(8*2)+(7*1)+(6*7)+(5*4)+(4*5)+(3*6)+(2*6)+(1*8)=143
143 % 10 = 3
So 217456-68-3 is a valid CAS Registry Number.
217456-68-3Relevant academic research and scientific papers
Benzylic C-glycosides via the Ramberg-Backlund reaction
Belica, Peter S.,Franck, Richard W.
, p. 8225 - 8228 (2007/10/03)
Easily prepared thioglycosides are oxidized to the sulfone level and then are subjected to Ramberg-Backlund conditions, i.e. a base plus halogenating agent. The products are exo glycals which upon hydrogenation afford C-glycosides.
