1217544-40-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1217544-40-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,7,5,4 and 4 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1217544-40:
(9*1)+(8*2)+(7*1)+(6*7)+(5*5)+(4*4)+(3*4)+(2*4)+(1*0)=135
135 % 10 = 5
So 1217544-40-5 is a valid CAS Registry Number.
1217544-40-5Relevant academic research and scientific papers
Synthesis of flavonoid derivatives of cytisine. 1. Aminomethylation of 7-hydroxy-3-arylcoumarins
Bondarenko,Frasinyuk,Vinogradova,Khilya
experimental part, p. 771 - 773 (2011/02/27)
Aminomethylation involving the natural alkaloid (-)-cytisine of analogs of natural 3-arylbenzopyran-2-ones was studied. Substituted 8-(cytisin-12-yl) methyl-3-aryl-7-hydroxycoumarins were synthesized.
