449727-90-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 449727-90-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,9,7,2 and 7 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 449727-90:
(8*4)+(7*4)+(6*9)+(5*7)+(4*2)+(3*7)+(2*9)+(1*0)=196
196 % 10 = 6
So 449727-90-6 is a valid CAS Registry Number.
449727-90-6Relevant articles and documents
Palladium-catalyzed couplings to nucleophilic heteroarenes: The total synthesis of (-)-frondosin B
Hughes, Chambers C.,Trauner, Dirk
, p. 9675 - 9686 (2007/10/03)
The total synthesis of (-)-frondosin B, the enantiomer of naturally-occuring (+)-frondosin B, is described, wherein a palladium-catalyzed cyclization is used to establish the tetracyclic ring system of the natural product. Graphical Abstract.
