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113747-77-6

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113747-77-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 113747-77-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,3,7,4 and 7 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 113747-77:
(8*1)+(7*1)+(6*3)+(5*7)+(4*4)+(3*7)+(2*7)+(1*7)=126
126 % 10 = 6
So 113747-77-6 is a valid CAS Registry Number.

113747-77-6Downstream Products

113747-77-6Relevant articles and documents

Enzymatic Kinetic Resolution of α-Nitro α-Methyl Carboxylic Acids

Lalonde, James J.,Bergbreiter, David E.,Wong, C.-H.

, p. 2323 - 2327 (1988)

Synthetic routes to various quaternary α-nitro α-methyl carboxylic acid esters from simpler nitroalkanes and nitroalkane derivatives are described.These quaternary α-amino acid precursors can be kinetically resolved by using α-chymotrypsin.It was found that partial hydrolysis of these α-nitro α-methyl esters and recovery of the unhydrolyzed ester proceeds preferentially by hydrolysis of the D enantiomer.Reduction of the α-nitro group thus then affords highly enantiomerically enriched L-α-methyl α-amino acids.

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