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2-Butanone, 1-chloro-4-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-4-(4-nitrophenyl)-, (4S)- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

494803-20-2

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494803-20-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 494803-20-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,9,4,8,0 and 3 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 494803-20:
(8*4)+(7*9)+(6*4)+(5*8)+(4*0)+(3*3)+(2*2)+(1*0)=172
172 % 10 = 2
So 494803-20-2 is a valid CAS Registry Number.

494803-20-2Relevant academic research and scientific papers

Asymmetric synthesis of aldol products derived from unsymmetrical ketones: Assignment of the absolute configuration of antibody aldol products

Maggiotti,Wong,Razet,Cowley,Gouverneur

, p. 1789 - 1798 (2007/10/03)

Compounds 1-7 are the products formed by aldol condensation of p-nitrobenzaldehyde with a series of unsymmetrical ketones, the reaction occurring at the less substituted carbon. The asymmetric synthesis of 1-7 using the Evans's asymmetric aldol methodology is described in detail. These syntheses were completed to allow us to assign the absolute configuration of products 1-3, obtained in a single step in the presence of the aldolase I antibody 84G3.

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