489420-99-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 489420-99-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,8,9,4,2 and 0 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 489420-99:
(8*4)+(7*8)+(6*9)+(5*4)+(4*2)+(3*0)+(2*9)+(1*9)=197
197 % 10 = 7
So 489420-99-7 is a valid CAS Registry Number.
489420-99-7Relevant articles and documents
Facile and highly stereoselective synthesis of the tetracyclic erythrinane core
Allin, Steven M.,James, Stella L.,Elsegood, Mark R. J.,Martin, William P.
, p. 9464 - 9467 (2007/10/03)
A highly stereoselective synthesis of the tetracyclic core of the Erythrina alkaloids is reported through the application of a Meyers bicyclic lactam template.
