141945-48-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 141945-48-4 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, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 141945-48:
(8*1)+(7*4)+(6*1)+(5*9)+(4*4)+(3*5)+(2*4)+(1*8)=134
134 % 10 = 4
So 141945-48-4 is a valid CAS Registry Number.
InChI:InChI=1/C10H9N3O3/c1-12-7-5-3-2-4-6(7)8(11)9(10(12)14)13(15)16/h2-5H,11H2,1H3
141945-48-4Relevant 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