143211-52-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 143211-52-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,2,1 and 1 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 143211-52:
(8*1)+(7*4)+(6*3)+(5*2)+(4*1)+(3*1)+(2*5)+(1*2)=83
83 % 10 = 3
So 143211-52-3 is a valid CAS Registry Number.
143211-52-3Relevant academic research and scientific papers
Synthesis of 2-aryl-triazolo-pyrazines
Sambaiah, T,Reddy,K Kondal
, p. 444 - 445 (2007/10/02)
2-Aroylaminopyrazines (2), obtained by aroylation of 2-aminopyrazine (1), have been converted into 5-aryl-1-(2'-pyrazinyl)tetrazoles (4) by the reaction with PCl5 followed by treatment with sodium azide in aq. acetone.Pyrolysis of 4 in decalin results in
