474970-80-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 474970-80-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,7,4,9,7 and 0 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 474970-80:
(8*4)+(7*7)+(6*4)+(5*9)+(4*7)+(3*0)+(2*8)+(1*0)=194
194 % 10 = 4
So 474970-80-4 is a valid CAS Registry Number.
474970-80-4Relevant academic research and scientific papers
A cascade cyclization approach to schweinfurthin B
Treadwell, Edward M.,Neighbors, Jeffrey D.,Wiemer, David F.
, p. 3639 - 3642 (2007/10/03)
(graph presented) A strategy for synthesis of the hexahydroxanthene moiety of the natural products schweinfurthin A, B, and D is described. The relative stereochemistry in the key cationic cyclization step is established through the preference of the phen
