126521-91-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 126521-91-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,6,5,2 and 1 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 126521-91:
(8*1)+(7*2)+(6*6)+(5*5)+(4*2)+(3*1)+(2*9)+(1*1)=113
113 % 10 = 3
So 126521-91-3 is a valid CAS Registry Number.
126521-91-3Relevant academic research and scientific papers
A Simple Method for the Synthesis of 2,3-Bis(arylazo)quinoxalines
Gallos, John K.,Corobili, Ekaterini E.
, p. 751 - 753 (2007/10/02)
The first synthesis of the novel 2,3-bis(arylazo)quinoxalines in high overall yields proceeds via reaction of 1,2-phenylenediamines with N,N'-diarylethanedihydrazonoyl dichlorides in the presence of triethylamine and oxidation of the resultant 2,3-bis(ary
