89240-53-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89240-53-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,2,4 and 0 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 89240-53:
(7*8)+(6*9)+(5*2)+(4*4)+(3*0)+(2*5)+(1*3)=149
149 % 10 = 9
So 89240-53-9 is a valid CAS Registry Number.
89240-53-9Relevant academic research and scientific papers
New approaches to the synthesis of eburnane alkaloids
Langlois,Pouilhes,Genin,et al.
, p. 3755 - 3761 (2007/10/02)
The aldehyde which is a key precursor of the Eburnane alkaloid vincamine has been prepared in two ways. The first one involves a photochemical rearrangement of a spiro oxaziridine intermediate and the second is based on an imino Diels-Alder reaction follo
