144221-25-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 144221-25-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,4,2,2 and 1 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 144221-25:
(8*1)+(7*4)+(6*4)+(5*2)+(4*2)+(3*1)+(2*2)+(1*5)=90
90 % 10 = 0
So 144221-25-0 is a valid CAS Registry Number.
144221-25-0Relevant articles and documents
N-heterocycles by cyclization of 2'-NHR-chalcones, 2'-NHR-chalcone dibromides and 2'-NHR-α-azidochalcones
Tokes,Litkei,Szilagyi
, p. 2433 - 2445 (2007/10/02)
Syntheses of six-membered N-heterocycles from 2'-NHR-chalcones, 2'-NHR-chalcone dibromides and 2'-NHR-α-azidochalcones are described and discussed.