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4-Pentynoic acid, 5-(2-aminophenyl)-2-[[(1,1-dimethylethoxy)carbonyl]amino]-, methyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

540516-91-4

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540516-91-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 540516-91-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,4,0,5,1 and 6 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 540516-91:
(8*5)+(7*4)+(6*0)+(5*5)+(4*1)+(3*6)+(2*9)+(1*1)=134
134 % 10 = 4
So 540516-91-4 is a valid CAS Registry Number.

540516-91-4Relevant academic research and scientific papers

Transition metal-catalyzed synthesis of novel biologically relevant tryptophan analogues

Van Esseveldt, Bart C. J.,Van Delft, Floris L.,Smits, Jan M. M.,De Gelder, Rene,Schoemaker, Hans E.,Rutjes, Floris P. J. T.

, p. 823 - 834 (2007/10/03)

A synthetic approach to the synthesis of novel tryptophan derivatives and benzofuran-containing amino acids is detailed. The sequence starts from enzymatically resolved enantiopure acetylene-containing amino acids, of which the acetylene function can be e

Palladium-catalyzed synthesis of novel optically active tryptophan analogues

Van Esseveldt, Bart C. J.,Van Delft, Floris L.,De Gelder, Rene,Rutjes, Floris P. J. T.

, p. 1717 - 1720 (2007/10/03)

(Matrix presented) Both unsaturated proline derivatives and optically active tryptophan analogues have been obtained via Pd-catalyzed cyclization of aniline-containing acetylenic amino acids. The side chain length of the cyclization precursor determines w

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