77202-97-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77202-97-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,2,0 and 2 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 77202-97:
(7*7)+(6*7)+(5*2)+(4*0)+(3*2)+(2*9)+(1*7)=132
132 % 10 = 2
So 77202-97-2 is a valid CAS Registry Number.
77202-97-2Relevant academic research and scientific papers
Olefination Reactions of 5H-Cyclopentaphenalen-5-one
Neidlein, Richard,Gartner, Rolf
, p. 57 - 60 (2007/10/02)
We describe olefination reactions of 5H-cyclopentaphenalen-5-one (1) with diphenyl ketene, phenyl cyano ketene, tert.-butyl cyano ketene, and methyl cyano ketene to yield compounds 2-6.Also, further the synthesis of 2--2H-nap
