10549-67-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 10549-67-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,0,5,4 and 9 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 10549-67:
(7*1)+(6*0)+(5*5)+(4*4)+(3*9)+(2*6)+(1*7)=94
94 % 10 = 4
So 10549-67-4 is a valid CAS Registry Number.
10549-67-4Relevant 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,
