25944-21-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 25944-21-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,9,4 and 4 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 25944-21:
(7*2)+(6*5)+(5*9)+(4*4)+(3*4)+(2*2)+(1*1)=122
122 % 10 = 2
So 25944-21-2 is a valid CAS Registry Number.
25944-21-2Relevant academic research and scientific papers
Modified coumarins. I. Synthesis of 5-phenyl-7H-furo[2,3-g]chromen-7-ones and 9-phenyl-7H-furo-[2,3-f]chromen-7-ones
Garazd,Garazd,Shilin,Khilya
, p. 478 - 484 (2007/10/03)
5-Phenyl-7H-furo[2,3-g]chromen-7-ones and 9-phenyl-7H-furo-[2,3-f]chromen-7-ones, new analogs of psoralen and allopsoralen, are synthesized from 7-hydroxy- and 5-hydroxy-4-phenylcoumarins.
