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(E)-But-2-enoic acid (R)-1-fluoromethyl-2-((S)-toluene-4-sulfinyl)-ethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

200569-56-8

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200569-56-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 200569-56-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,0,5,6 and 9 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 200569-56:
(8*2)+(7*0)+(6*0)+(5*5)+(4*6)+(3*9)+(2*5)+(1*6)=108
108 % 10 = 8
So 200569-56-8 is a valid CAS Registry Number.

200569-56-8Upstream product

200569-56-8Relevant academic research and scientific papers

Complete diastereocontrol in [3+2] cycloaddition reactions: Synthesis of enantiomerically pure fluoromethyl substituted β-amino acids

Arnone, Alberto,Blasco, Francesca,Resnati, Giuseppe

, p. 17513 - 17518 (1997)

The intramolecular reaction of nitrones of crotonic and cinnamic esters of (S)-3-fluoro-2-hydroxypropanal afforded corresponding cycloadducts in good chemical yields and complete stereoselection.

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