80680-93-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 80680-93-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,0,6,8 and 0 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 80680-93:
(7*8)+(6*0)+(5*6)+(4*8)+(3*0)+(2*9)+(1*3)=139
139 % 10 = 9
So 80680-93-9 is a valid CAS Registry Number.
80680-93-9Relevant academic research and scientific papers
A HIGHLY CONVERGENT AND FLEXIBLE STRATEGY FOR THE SYNTHESIS OF A-RING AROMATIC STEROIDS
Mander, Lewis N.,Turner, John V.
, p. 3683 - 3686 (2007/10/02)
Using Hendrickson's criteria for systematic synthesis design, a strategy featuring a linear six carbon synthon (7) for bis-annulation has been devised for economic, flexible and highly convergent syntheses of A-ring aromatic steroids.
