112181-57-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 112181-57-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,2,1,8 and 1 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 112181-57:
(8*1)+(7*1)+(6*2)+(5*1)+(4*8)+(3*1)+(2*5)+(1*7)=84
84 % 10 = 4
So 112181-57-4 is a valid CAS Registry Number.
112181-57-4Relevant academic research and scientific papers
A Convenient Synthesis of 2,3-Disubstituted Benzonaphthyridines; A Novel Annelation Reaction of 2,3-Disubstituted Quinolines
Srivastava, Ranjan P.,Bhaduri, Neelima A. P.
, p. 512 - 514 (2007/10/02)
2-Chloro-3-(2-substituted 2-cyanovinyl)quinolines undergo cyclization on reaction with an excess of a secondary amine to give 3-substituted 2-aminobenzonaphthyridines in moderate to high yields.
