717894-43-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 717894-43-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,1,7,8,9 and 4 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 717894-43:
(8*7)+(7*1)+(6*7)+(5*8)+(4*9)+(3*4)+(2*4)+(1*3)=204
204 % 10 = 4
So 717894-43-4 is a valid CAS Registry Number.
717894-43-4Relevant 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.
