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112117-81-4

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112117-81-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 112117-81-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,2,1,1 and 7 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 112117-81:
(8*1)+(7*1)+(6*2)+(5*1)+(4*1)+(3*7)+(2*8)+(1*1)=74
74 % 10 = 4
So 112117-81-4 is a valid CAS Registry Number.

112117-81-4Relevant articles and documents

Processes for preparing pharmaceutical grade melphalans from industrial grade reactants

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Page/Page column 7, (2012/07/31)

A four stage inexpensive method of preparing pharmaceutical grade Melphalans of Melphalan 2-HCl, Melphalan HCl and Melphalan by: reacting N- phthaloyl-4-[bis(2-hydroxyethyl)amino]-phenylalanine ethyl ester with phosphorous oxychloride, reacting the chlorinated product with HCl and alkali hydroxide and purifying, and lyophilizing to obtain Melphalans.

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