89208-05-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89208-05-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,2,0 and 8 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 89208-05:
(7*8)+(6*9)+(5*2)+(4*0)+(3*8)+(2*0)+(1*5)=149
149 % 10 = 9
So 89208-05-9 is a valid CAS Registry Number.
89208-05-9Relevant academic research and scientific papers
210. New Heteroarenes: Synthesis and Spectroscopic Properties of Indolizinoquinoline ('Ullazine') and of Some Derivatives
Balli, Heinz,Zeller, Martin
, p. 2135 - 2139 (2007/10/02)
The synthesis, 1H-NMR, 13C-NMR and electronic absorption spectra of indolizinoquinoline (6a), a new ?-excess heteroarene, and of three 3,9-disubstituted derivatives are described.
