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353497-35-5

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353497-35-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 353497-35-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,5,3,4,9 and 7 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 353497-35:
(8*3)+(7*5)+(6*3)+(5*4)+(4*9)+(3*7)+(2*3)+(1*5)=165
165 % 10 = 5
So 353497-35-5 is a valid CAS Registry Number.

353497-35-5Relevant articles and documents

A new industrial process for oxcarbazepine

Fuenfschilling, Peter C.,Zaugg, Werner,Beutler, Ulrich,Kaufmann, Daniel,Lohse, Olivier,Mutz, Jean-Paul,Onken, Ulrich,Reber, Jean-Louis,Shenton, David

, p. 272 - 277 (2012/12/24)

A novel industrial process for the antiepileptic drug oxcarbazepine 1 has been developed. Unlike the old process, the new process is free from halogenated solvents and can be performed in standard production equipment. It starts from commercially available 1,3-dihydro-1-phenyl-2H-indol-2-one 10. In the key step, an electrophilic ring closure reaction of 2-[(methoxycarbonyl)phenylamino] benzeneacetic acid 5 to 10,11-dihydro-10-oxo-5H-dibenz[b,f]azepine-5-carboxylic acid methyl ester 6 in poly phosphoric acid was applied. For the manufacture of 5, a highly efficient process using a dianion strategy was developed.

Dibenzo(b,f)azepine derivatives and their preparation

-

, (2008/06/13)

The invention relates to new processes for the preparation of the pharmaceutical oxcarbazepine, as well as novel intermediates prepared by or used for said processes, and the preparation of said intermediates.

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