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Butanedioic acid, methyl[[(4-nitrophenyl)sulfonyl]oxy]oxo-, diethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

188530-99-6

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188530-99-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 188530-99-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,8,5,3 and 0 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 188530-99:
(8*1)+(7*8)+(6*8)+(5*5)+(4*3)+(3*0)+(2*9)+(1*9)=176
176 % 10 = 6
So 188530-99-6 is a valid CAS Registry Number.

188530-99-6Downstream Products

188530-99-6Relevant academic research and scientific papers

Synthesis and Reactions of 3-(Nosyloxy)-2-keto Esters

Hoffman, Robert V.,Catherine Johnson,Okonya, John F.

, p. 2458 - 2465 (2007/10/03)

A series of 3-(nosyloxy)-2-keto esters 7a-j were prepared from the corresponding α-keto esters by conversion to the trimethylsilyl enol ether and reaction with p-nitrobenzenesulfonyl peroxide. Conversion of these materials to 1,2,3-trifunctionalized compounds is described, and comparison of their properties with isomeric 2-(nosyloxy)-3-keto esters is discussed.

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