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Benzenepropanoic acid, b-aMino-3,4-diMethoxy-, ethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

54503-21-8

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54503-21-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 54503-21-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,5,0 and 3 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 54503-21:
(7*5)+(6*4)+(5*5)+(4*0)+(3*3)+(2*2)+(1*1)=98
98 % 10 = 8
So 54503-21-8 is a valid CAS Registry Number.

54503-21-8Downstream Products

54503-21-8Relevant academic research and scientific papers

An efficient new enzymatic method for the preparation of β-aryl-β-amino acid enantiomers

Tasnadi, Gabor,Forro, Eniko,Fueloep, Ferenc

, p. 2072 - 2077 (2008/12/22)

An efficient synthesis of β-aryl-β-amino acid enantiomers has been developed via the lipase-catalysed enantioselective hydrolysis of the corresponding racemic ethyl esters in an organic solvent. High enantioselectivities (E >100) were observed when the lipase PS-catalysed reactions were performed with H2O (0.5 equiv) in diisopropyl ether at 45 °C. The products could be easily separated and were obtained in good yields of ≥40%.

Cyclic amides

-

, (2008/06/13)

Cyclic amides are inhibitors of tumor necrosis factor and can be used to combat cachexia, endotoxic shock, and retrovirus replication. A typical embodiment is 3-phenyl-3-(1-oxoisoindolin-2-yl)propionamide.

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