117979-40-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 117979-40-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,9,7 and 9 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 117979-40:
(8*1)+(7*1)+(6*7)+(5*9)+(4*7)+(3*9)+(2*4)+(1*0)=165
165 % 10 = 5
So 117979-40-5 is a valid CAS Registry Number.
117979-40-5Relevant academic research and scientific papers
A New and Improved Synthesis of 6-Aryl-1,2,4-triazolopyridazines
Lieberman, Daniel F.,Albright, J. Donald
, p. 827 - 830 (2007/10/02)
A new and improved synthesis of 6-aryl-1,2,4-triazolopyridazines is described.This methodology provides the title compounds under mild conditions and in high yields.The first step comprises the condensation of an aryl methyl ketone with a 4-amino-1
