75077-45-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 75077-45-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,0,7 and 7 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 75077-45:
(7*7)+(6*5)+(5*0)+(4*7)+(3*7)+(2*4)+(1*5)=141
141 % 10 = 1
So 75077-45-1 is a valid CAS Registry Number.
75077-45-1Relevant articles and documents
Synthesis of the Food Mutagens MeIQx and 4,8-DiMeIQx by Copper(I) Promoted Quinoxaline Formation
Knapp, Spencer,Ziv, Joseph,Rosen, Joseph D.
, p. 1293 - 1298 (1989)
The regiocontrolled syntheses of the title compounds (1 and 2) is described.The key step is a new intramolecular alkyne amination and aromatization process (5 6; 8 9) effected by tetrakis(acetonitrile)copper(I) tetrafluoroborate.