141945-65-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 141945-65-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,1,9,4 and 5 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 141945-65:
(8*1)+(7*4)+(6*1)+(5*9)+(4*4)+(3*5)+(2*6)+(1*5)=135
135 % 10 = 5
So 141945-65-5 is a valid CAS Registry Number.
141945-65-5Relevant articles and documents
Nucleophilic Substitution and Ring Closure Reactions of 4-Chloro-3-nitro-2-quinolones
Roschger, Peter,Fiala, Werner,Stadlbauer, Wolfgang
, p. 225 - 231 (2007/10/02)
4-Chloro-3-nitro-2-quinolones 3 obtained from the 4-hydroxy quinolones 1 by nitration and chlorination, reacted with sodium azide to the 4-azido derivatives 4 which cyclized on thermolysis to yield the furoxanes 5.Nucleophilic substitution reactions of 3
