154139-58-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 154139-58-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,4,1,3 and 9 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 154139-58:
(8*1)+(7*5)+(6*4)+(5*1)+(4*3)+(3*9)+(2*5)+(1*8)=129
129 % 10 = 9
So 154139-58-9 is a valid CAS Registry Number.
154139-58-9Relevant 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
