117838-43-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 117838-43-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,8,3 and 8 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 117838-43:
(8*1)+(7*1)+(6*7)+(5*8)+(4*3)+(3*8)+(2*4)+(1*3)=144
144 % 10 = 4
So 117838-43-4 is a valid CAS Registry Number.
117838-43-4Relevant articles and documents
Synthesis of Indazoloquinolines
Reddy, Y. Padma,Reddy, K. Kondal
, p. 563 - 564 (2007/10/02)
A number of 2-(o-nitrophenyl)quinolines (Ia-e) have been synthesised and converted via amines (IIa-e) into corresponding azides (IIIa-e).Thermolysis and deoxygenation of 2-(o-azidophenyl)-(IIIa-e) and 2-(o-nitrophenyl)-(Ia-e)-quinolines respectively lead
