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128249-72-9

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128249-72-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128249-72-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,2,4 and 9 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 128249-72:
(8*1)+(7*2)+(6*8)+(5*2)+(4*4)+(3*9)+(2*7)+(1*2)=139
139 % 10 = 9
So 128249-72-9 is a valid CAS Registry Number.

128249-72-9Downstream Products

128249-72-9Relevant academic research and scientific papers

Enzyme-mediated enantioselective hydrolysis of dicarboxylic acid monoesters

Kataoka, Noriyuki,Okudomi, Masayuki,Chihara, Naoka,Matsumoto, Kazutsugu

, p. 615 - 621 (2013/02/23)

The enzyme-mediated highly enantioselective hydrolysis of dicarboxylic acid monoesters was investigated. The racemic substrates, which were prepared by coupling of the corresponding alcohols with dicarboxylic anhydrides, were enantioselectively hydrolyzed by lipase from Candida antarctica (Novozym 435) in a buffer at 30 °C. The products were easily separated by a simple extraction procedure without laborious column chromatography to afford both enantiomers of the alcohols. We then determined that the dicarboxylic acid monoesters were suitable alternative substrates for the preparation of optically active alcohols.

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