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meso-2,5-dioxohexane-3,4-dicarboxylic acid dimethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

139136-52-0

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139136-52-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 139136-52-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,1,3 and 6 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 139136-52:
(8*1)+(7*3)+(6*9)+(5*1)+(4*3)+(3*6)+(2*5)+(1*2)=130
130 % 10 = 0
So 139136-52-0 is a valid CAS Registry Number.

139136-52-0Upstream product

139136-52-0Downstream Products

139136-52-0Relevant academic research and scientific papers

ELECTROCHEMICAL OXIDATIVE DIMERIZATION OF ACETOACETIC AND BENZOYLACETIC ESTERS IN THE PRESENCE OF METAL HALIDES

Elinson, M.N.,Lizunova, T.L.,Nikishin, G.I.

, p. 2213 - 2216 (2007/10/02)

Acetoacetic and benzoylacetic esters dimerize on electrolysis in the presence of metal halide mediators to form 2,5-dioxohexane-3,4-dicarboxylic and 1,4-dioxo-1,4-diphenylbutane-2,3-dicarboxylic esters in yields up to 90percent.Primarily the meso-form of the dimer is produced (up to 90percent) under optimal conditions (NaI, -20 deg C) in acetone and acetonitrile.Diastereomers of the dimer are produced in comparable amounts in methanol and ethanol.

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