90703-60-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 90703-60-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,7,0 and 3 respectively; the second part has 2 digits, 6 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 90703-60:
(7*9)+(6*0)+(5*7)+(4*0)+(3*3)+(2*6)+(1*0)=119
119 % 10 = 9
So 90703-60-9 is a valid CAS Registry Number.
90703-60-9Relevant articles and documents
REGIOSELECTIVE SYNTHESIS OF 2,6-DICHLOROQUINOXALINE AND 2-CHLORO-6-IODOQUINOXALINE
Sakata, Gozyo,Makino, Kenzi
, p. 323 - 326 (1984)
Facile regioselective synthesis of 2,6-dichloroquinoxaline and 2-chloro-6-iodoquinoxaline is described.Electrophilic substitution reaction of 2(1H)-quinoxalinone with chloride and iodide ion in 95percent sulfuric acid occurred at 6-position exclusively.