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853913-61-8

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853913-61-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 853913-61-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,3,9,1 and 3 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 853913-61:
(8*8)+(7*5)+(6*3)+(5*9)+(4*1)+(3*3)+(2*6)+(1*1)=188
188 % 10 = 8
So 853913-61-8 is a valid CAS Registry Number.

853913-61-8Downstream Products

853913-61-8Relevant articles and documents

Process for the resolution of racemic (R,S) -5-(2-(2-(2- ethoxyphenoxy) ethylamino)propyl)-2-methoxybenzene sulfonamide (tamsulosin), its novel R and S isomers and their salts and processes for their preparation

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Page/Page column 9-10, (2010/10/20)

An improved process is described to resolve a racemic mixture in any proportion of 5-(2-(2-(2-ethoxyphenoxy)ethylamino)propyl)-2-methoxy benzene sulfonamide as a free base or some of its salts, with BPA either S or R form to obtain enantiomerically highly pure R and S-isomer as a well characterized free base or as a salt of the title compound. Also described are novel R and S-isomers of 5-(2-(2-(2-ethoxyphenoxy) ethylamino)propyl)-2-methoxy benzene sulfonamide and their salts and the processes for their preparation.

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