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917613-68-4

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917613-68-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 917613-68-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,1,7,6,1 and 3 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 917613-68:
(8*9)+(7*1)+(6*7)+(5*6)+(4*1)+(3*3)+(2*6)+(1*8)=184
184 % 10 = 4
So 917613-68-4 is a valid CAS Registry Number.

917613-68-4Relevant articles and documents

Method of Preparing Clopidogrel and Intermediates Used Therein

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Page/Page column 4, (2008/12/08)

Optically pure clopidogrel can be prepared in a high yield by optically resolving a racemic form of the compound of formula (II) using an optically active amine to form the optically active form of the compound of formula (III) or its acid-addition salt; and methylating the compound of formula (III) or its acid-addition salt.

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