134839-45-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 134839-45-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,8,3 and 9 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 134839-45:
(8*1)+(7*3)+(6*4)+(5*8)+(4*3)+(3*9)+(2*4)+(1*5)=145
145 % 10 = 5
So 134839-45-5 is a valid CAS Registry Number.
134839-45-5Relevant 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-
