139286-95-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 139286-95-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,2,8 and 6 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 139286-95:
(8*1)+(7*3)+(6*9)+(5*2)+(4*8)+(3*6)+(2*9)+(1*5)=166
166 % 10 = 6
So 139286-95-6 is a valid CAS Registry Number.
139286-95-6Relevant academic research and scientific papers
Modified coumarins. II. Mannichreaction of substituted 4-phenylcoumarins
Garazd,Garazd,Shilin,Khilya
, p. 485 - 492 (2007/10/03)
Aminomethylation of 5-hydroxy- and 7-hydroxy-4-phenylcoumarins by substituted 1,1-diaminomethanes is studied. Mannich condensation of amino acids and their esters with 7-hydroxy-4-phenylcoumarin gives a series of 8-aminoacylmethylcoumarins and 4-phenyl-9,
