134369-84-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 134369-84-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,3,6 and 9 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 134369-84:
(8*1)+(7*3)+(6*4)+(5*3)+(4*6)+(3*9)+(2*8)+(1*4)=139
139 % 10 = 9
So 134369-84-9 is a valid CAS Registry Number.
134369-84-9Relevant academic research and scientific papers
A REGIOSELECTIVE SYNTHESIS OF 2-ALKYLFUROQUINOLIN -4(5H)-ONES
Majumdar, Krishna C.,Choudhury, Prabir K.
, p. 73 - 78 (2007/10/02)
The title compounds (2a-h) were obtained in moderate yields by simply refluxing 1-alkyl-4-hydroxyquinolin-2(1H)-ones (1a,b) with a number of acetylenic halides in n-butanol in the presence of anhydrous potassium carbonate.Compounds (2h,i) were also obtain
