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108154-64-9

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108154-64-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 108154-64-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,8,1,5 and 4 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 108154-64:
(8*1)+(7*0)+(6*8)+(5*1)+(4*5)+(3*4)+(2*6)+(1*4)=109
109 % 10 = 9
So 108154-64-9 is a valid CAS Registry Number.

108154-64-9Relevant articles and documents

METHOD FOR PREPARING PHENYL HETEROCYCLES AS CYCLOOXYGENASE-2 INHIBITOR

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Page/Page column 8-9, (2008/06/13)

The present invention relates to a method for preparing phenyl heterocycle as cyclooxygenase-2 inhibitor useful in the treatment of other cyclooxygenase meditated diseases, which is environmentally harmonious and has an improved productivity. More particularly, it relates to a method for preparing phenyl heterocycle as cyclooxygenase-2 inhibitor, characterized in providing a high-purity compound of Formula 5 with the low cost of production and a simple process, which is harmless to human and environmental pollution due to not generating a halogen gas when preparing, and comprising the steps of lactonization reaction with a compound of Formula 1 as an initiator; substitution reaction; and oxidation reaction.

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