831209-20-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 831209-20-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,3,1,2,0 and 9 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 831209-20:
(8*8)+(7*3)+(6*1)+(5*2)+(4*0)+(3*9)+(2*2)+(1*0)=132
132 % 10 = 2
So 831209-20-2 is a valid CAS Registry Number.
831209-20-2Relevant academic research and scientific papers
Modified coumarins. 29. Synthesis of structural analogs of natural 6-arylfuro[3,2-g]chromen-7-ones
Garazd,Garazd,Ogorodniichuk,Khilya
experimental part, p. 158 - 163 (2009/12/06)
3-Substituted 6-arylfuro[3,2-g]chromen-7-ones, structural analogs of natural furocoumarins, were synthesized by linear annelation of a furan fragment to a 3-arylcoumarin system.
