13228-81-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 13228-81-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,2,2 and 8 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 13228-81:
(7*1)+(6*3)+(5*2)+(4*2)+(3*8)+(2*8)+(1*1)=84
84 % 10 = 4
So 13228-81-4 is a valid CAS Registry Number.
13228-81-4Relevant academic research and scientific papers
Synthesis of 2,6-diaryl--triazolo-1,3,4-thiadiazoles
Prasad, V S R,Reddy, K Kondal
, p. 435 - 436 (2007/10/02)
Reaction of 2-amino-5-aryl-1,3,4-thiadiazoles (1) with aryl cyanides inthe presence of anhydrous aluminium chloride leads to N-2-(5-aryl-1,3,4-thiadiazolyl)arylamidines (2).These (2) on oxidative cyclisation with lead tetraacetate yield 2,6-diaryl-