116991-66-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 116991-66-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,6,9,9 and 1 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 116991-66:
(8*1)+(7*1)+(6*6)+(5*9)+(4*9)+(3*1)+(2*6)+(1*6)=153
153 % 10 = 3
So 116991-66-3 is a valid CAS Registry Number.
116991-66-3Relevant academic research and scientific papers
A New Route for the Synthesis of Pyridopyridazines
Sadek, Kamal Usef,Elnagdi, Mohamed Hilmy
, p. 483 - 484 (2007/10/02)
A new simple route for the synthesis of pyridopyridazines by reaction of acetyl and benzoyl cyanides with α,β-unsaturated nitriles is reported.
