109179-49-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109179-49-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,1,7 and 9 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 109179-49:
(8*1)+(7*0)+(6*9)+(5*1)+(4*7)+(3*9)+(2*4)+(1*9)=139
139 % 10 = 9
So 109179-49-9 is a valid CAS Registry Number.
109179-49-9Relevant articles and documents
Synthesis of 1-Phenyl-1H-pyrazolo-quinoxaline (1-Phenylflavazole) Derivatives Substituted at 3-Position
Pillai, P. Madhavan,Ramabhadran, P.
, p. 960 - 963 (2007/10/02)
3-Amino-, 3-chloro- and 3-hydroxy-1-phenyl-1H-pyrazoloquinoxalines (6,9 and 12) have been prepared starting from ethyl 2-hydroxyquinoxaline-3-carboxylate (1).The 3-amino derivative (12) is also obtained from a Hofmann reaction of 1-phenyl-1H-pyrazo
