94033-99-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 94033-99-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,4,0,3 and 3 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 94033-99:
(7*9)+(6*4)+(5*0)+(4*3)+(3*3)+(2*9)+(1*9)=135
135 % 10 = 5
So 94033-99-5 is a valid CAS Registry Number.
94033-99-5Relevant articles and documents
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