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496881-81-3

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496881-81-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 496881-81-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,9,6,8,8 and 1 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 496881-81:
(8*4)+(7*9)+(6*6)+(5*8)+(4*8)+(3*1)+(2*8)+(1*1)=223
223 % 10 = 3
So 496881-81-3 is a valid CAS Registry Number.

496881-81-3Downstream Products

496881-81-3Relevant articles and documents

Synthesis of (R)-3,4-diaminobutanoic acid by desymmetrization of dimethyl 3-(benzylamino)glutarate through enzymatic ammonolysis

Lopez-Garcia, Monica,Alfonso, Igancio,Gotor, Vicente

, p. 648 - 651 (2007/10/03)

Lipase B from Candida antarctica is shown to be a highly efficient catalyst for the desymmetrization of dimethyl 3-(benzylamino)glutarate (1) through aminolysis and ammonolysis reactions. Using this procedure, enantiopure monoamides are obtained in high yield. The synthetic value of these compounds is demonstrated by the preparation of an enantiopure nonnatural amino acid, i.e. (R)-3,4-diaminobutanoic acid [(+)-12].

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