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1246024-63-4

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1246024-63-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1246024-63-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,4,6,0,2 and 4 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1246024-63:
(9*1)+(8*2)+(7*4)+(6*6)+(5*0)+(4*2)+(3*4)+(2*6)+(1*3)=124
124 % 10 = 4
So 1246024-63-4 is a valid CAS Registry Number.

1246024-63-4Relevant articles and documents

Oligo(4-aminopiperidine-4-carboxylic acid): An unusual basic oligopeptide with an acid-induced helical conformation

Cho, Joon-Il,Tanaka, Masahiro,Sato, Sota,Kinbara, Kazushi,Aida, Takuzo

supporting information; experimental part, p. 13176 - 13178 (2010/12/19)

In sharp contrast with helical polypeptides carrying basic side chains, Api8, a basic oligopeptide containing the non-natural achiral amino acid 4-aminopiperidine-4-carboxylic acid (Api), adopts a helical conformation only in acidic media. Alkaline titration of a protonated Api8 oligomer appended with a leucine derivative at its N-terminus showed that disruption of its helical conformation occurs in a pH range of 7-10. NMR studies indicated that the piperidine groups in Api8, when nonprotonated, possibly interact with the proximal amide protons in the peptide backbone and hamper the formation of the H-bonding network responsible for the helical conformation. The helical structure is induced not only by protonation but also by acylation of the piperidine groups.

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