147661-04-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 147661-04-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,7,6,6 and 1 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 147661-04:
(8*1)+(7*4)+(6*7)+(5*6)+(4*6)+(3*1)+(2*0)+(1*4)=139
139 % 10 = 9
So 147661-04-9 is a valid CAS Registry Number.
147661-04-9Relevant academic research and scientific papers
The use of conjugated dienones in Friedel-Crafts annulations
Majetich, George,Zhang, Yona,Lee Feltman,Belfuore, Vincent
, p. 441 - 444 (2007/10/02)
Lewis acid-activated conjugated dienones add to electron-rich arenes to create tricyclic compounds containing a central cycloheptane ring.
