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25984-64-9

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25984-64-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 25984-64-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,9,8 and 4 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 25984-64:
(7*2)+(6*5)+(5*9)+(4*8)+(3*4)+(2*6)+(1*4)=149
149 % 10 = 9
So 25984-64-9 is a valid CAS Registry Number.

25984-64-9Relevant articles and documents

PROCESS TO PREPARE ETHYL 4-METHYL-2-(4-(2-METHYLPROPYLOXY)-3-CYANOPHENYL)-5-THIAZOLECARBOXYLATE

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Paragraph 0089; 0090; 0091; 0092, (2013/07/19)

Disclosed is a process for the preparation of Ethyl 4-methyl-2-(4-(2-methylpropyloxy)-3-cyanophenyl)-5-thiazolecarboxylate (I) the key intermediate for the preparation of [2-[3-cyano-4-(2-Methyl-propoxy)phenyl]-4-methyl-5-thiazole carboxylic acid (Febuxostat, I(A)) is approved under the trademark Uloric? by the US Food and Drug Administration for the treatment of hyperuricemia and gouty arthritis.

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