80917-53-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 80917-53-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,0,9,1 and 7 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 80917-53:
(7*8)+(6*0)+(5*9)+(4*1)+(3*7)+(2*5)+(1*3)=139
139 % 10 = 9
So 80917-53-9 is a valid CAS Registry Number.
80917-53-9Relevant academic research and scientific papers
Experiments towards the total synthesis of five-membered D-ring ergot alkaloid analogues
Okide, George B.
, p. 9517 - 9524 (2007/10/02)
The known tricyclic ketone, Kornfeld's ketone (5)1, has been prepared in a much improved yield by modification of the usual procedure from the commercially available indole-3-propionic acid. Direct condensation with N-methylaminopropionitrile y
