23349-50-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 23349-50-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,3,4 and 9 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 23349-50:
(7*2)+(6*3)+(5*3)+(4*4)+(3*9)+(2*5)+(1*0)=100
100 % 10 = 0
So 23349-50-0 is a valid CAS Registry Number.
23349-50-0Relevant academic research and scientific papers
A New Regiospecific Synthesis of 1,4-Dihydroxyxanthones
Simoneau, Bruno,Brassard, Paul
, p. 1507 - 1510 (2007/10/02)
Several methyl salicylates have been found to substitute halogenated benzoquinones regiospecifically in the presence of anhydrous potassium fluoride.The resultant phenoxybenzoquinones were reduced and cyclized to highly functionalized xanthones of unambig
