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(S)-2-[(3-Methyl-but-2-enyl)-(4-nitro-benzenesulfonyl)-amino]-3-phenyl-propionic acid methyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

191337-28-7

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191337-28-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 191337-28-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,1,3,3 and 7 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 191337-28:
(8*1)+(7*9)+(6*1)+(5*3)+(4*3)+(3*7)+(2*2)+(1*8)=137
137 % 10 = 7
So 191337-28-7 is a valid CAS Registry Number.

191337-28-7Relevant academic research and scientific papers

Derivatized oxopiperazine rings from amino acids

Bhatt, Ulhas,Mohamed, Nazim,Just, George,Roberts, Edward

, p. 3679 - 3682 (1997)

Two routes for the synthesis of derivatized oxopiperazines, which may act as constrained peptide mimics, are reported. The syntheses employ reductive amination and sulfonamide approaches for generating N-allylic amino acid ester derivatives and utilizing them for assembling the ring systems. An aspartame analog was prepared using this methodology.

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