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(S)-2-Amino-4-methyl-pentanoic acid {(S)-1-[(S)-1-(4-nitro-phenylcarbamoyl)-ethylcarbamoyl]-ethyl}-amide is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

142956-19-2

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142956-19-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 142956-19-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,2,9,5 and 6 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 142956-19:
(8*1)+(7*4)+(6*2)+(5*9)+(4*5)+(3*6)+(2*1)+(1*9)=142
142 % 10 = 2
So 142956-19-2 is a valid CAS Registry Number.

142956-19-2Relevant academic research and scientific papers

ROLE OF AMINO ACID RESIDUES IN CHROMOGENIC SUBSTRATES CLEAVED BY PANCREATIC ELASTASE

Kasafirek, Evzen,Fric, Premysl,Slaby, Jan

, p. 1625 - 1633 (2007/10/02)

Anionic chromogenic substrates, 3-carboxypropionyl tripeptide p-nitroanilides modified with glycine, β-alanine, alanine, leucine, and proline in positions P1, P2, and P3 were synthesized.The substrates were digested with pancreatic elastase and the values of Km, kcat, and kcat/Km were determined.Alanine plays a decisive role in position P1, substrates with glycine or β-alanine in this position are not cleaved.The substitution in P2 is dominant for proline; next follow alanine, leucine, and glycine.The substitution in P3 is the least specific one.

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