233-90-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 233-90-9 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 2,3 and 3 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 233-90:
(5*2)+(4*3)+(3*3)+(2*9)+(1*0)=49
49 % 10 = 9
So 233-90-9 is a valid CAS Registry Number.
233-90-9Relevant academic research and scientific papers
Synthesis of 2-Sustituted 1H-Imidazoquinoxalines
Kishan Rao, S.,Pandu Ranga Reddy, A.,Veerangaiah, V.
, p. 960 - 961 (2007/10/02)
Condensation of 5,6-diaminoquinoxaline (I) with aliphatic and aromatic acids under catalytic and thermal conditions yields the corresponding 2-alkyl/aryl-1H-imidazoquinoxalines (III).
