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Z-His-Phe-OtBu is a tripeptide, a chain of three amino acids, consisting of Z-protected histidine (His), phenylalanine (Phe), and tert-butyloxycarbonyl (OtBu) group. The Z group (benzyloxycarbonyl) is a protecting group used in peptide synthesis to prevent unwanted side reactions, particularly during solid-phase peptide synthesis. The OtBu group is another protecting group, specifically for the amino group, which is crucial for maintaining the integrity of the peptide structure during synthesis. This particular sequence of amino acids is of interest in the field of peptide chemistry, where such protected peptides can be used as building blocks for the synthesis of larger, more complex peptide structures with potential applications in pharmaceuticals, research, and other areas of biochemistry.

75759-92-1

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75759-92-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 75759-92-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,7,5 and 9 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 75759-92:
(7*7)+(6*5)+(5*7)+(4*5)+(3*9)+(2*9)+(1*2)=181
181 % 10 = 1
So 75759-92-1 is a valid CAS Registry Number.

75759-92-1Relevant academic research and scientific papers

Carboxylate-imidazole cooperativity in dipeptide-functionalized gold nanoparticles with esterase-like activity

Pengo, Paolo,Polizzi, Stefano,Pasquato, Lucia,Scrimin, Paolo

, p. 1616 - 1617 (2005)

We report here the first example of peptide-functionalized gold nanoparticles hydrolytically active against carboxylate esters. The active units are constituted by His-Phe-OH terminating thiols. The confinement of the catalytic units in the monolayer covering the nanoparticles triggers a cooperative hydrolytic mechanism operative at pH 7 in which a carboxylate and an imidazolium ion act as general base and general acid, respectively. Such a mechanism is absent with an analogous monomeric dipeptide, and this results in a more than 300-fold rate acceleration of the hydrolytic process at low pH in the presence of the functional nanoparticles. Copyright

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