617673-36-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 617673-36-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,1,7,6,7 and 3 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 617673-36:
(8*6)+(7*1)+(6*7)+(5*6)+(4*7)+(3*3)+(2*3)+(1*6)=176
176 % 10 = 6
So 617673-36-6 is a valid CAS Registry Number.
617673-36-6Relevant articles and documents
Synthesis of JKLM ring fragment of ciguatoxin via acetylene-cobalt strategy
Baba, Takayuki,Isobe, Minoru
, p. 547 - 551 (2007/10/03)
A stereoselective synthesis of the JKLM ring fragment has been achieved through a coupling between two segments via heteroconjugate addition, seven-membered ether ring formation mediated by an acetylene cobalt complex and spiroketalization reaction.