502-57-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 502-57-8 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,0 and 2 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 502-57:
(5*5)+(4*0)+(3*2)+(2*5)+(1*7)=48
48 % 10 = 8
So 502-57-8 is a valid CAS Registry Number.
502-57-8Relevant articles and documents
HYDROZIRCONATION METHODS FOR NATURAL ISOBUTYLAMIDES (ANACYCLIN, PELLITORINE AND ITS VINYLOGUE) AND SYNTHONS.
Crombie, Leslie,Hobbs, Andrew J. W.,Horsham, Mark A.,Blade, Robert J.
, p. 4875 - 4878 (1987)
Hydrometallation of α,ο-diynes is used to make ο-acetylenic isobutylamide synthons: new syntheses of anacyclin, pellitorine and its vinylogous triene are described.