340158-08-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 340158-08-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,4,0,1,5 and 8 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 340158-08:
(8*3)+(7*4)+(6*0)+(5*1)+(4*5)+(3*8)+(2*0)+(1*8)=109
109 % 10 = 9
So 340158-08-9 is a valid CAS Registry Number.
340158-08-9Relevant articles and documents
A general approach to the galanthamine ring system
Parsons, Philip J.,Charles, Mark D.,Harvey, Darren M.,Sumoreeah, L. Ravi,Shell, Adrian,Spoors, Grant,Gill, Adrian L.,Smith, Steve
, p. 2209 - 2211 (2007/10/03)
An approach to the galanthamine ring system is reported, which utilises an intramolecular Heck reaction to establish the benzofuran ring system present in both galanthamine and morphine.
