MT2 5x10mg Bundle

What is the MT2 5x10mg Bundle?

The MT2 5x10mg Bundle brings together five individually sealed vials of freeze-dried MT2 in one package, each containing 10 mg. MT2 is a synthetic cyclic heptapeptide, enclosed by a lactam bridge, with the sequence Ac-Nle-cyclo[Asp-His-D-Phe-Arg-Trp-Lys]-NH₂, CAS number 121062-08-6 and molecular formula C₅₀H₆₉N₁₅O₉ (approx. 1024 g/mol). All five units contain the same material in the same specification, without deviating components or additives.

The cyclic nature of the compound is based on a lactam bridge between the side chain of aspartic acid and that of lysine: the chain is thereby fixed in a closed ring and loses a large part of its conformational freedom of movement. Additionally, norleucine at the N-terminal position and the D-enantiomer of phenylalanine within the ring contribute to the sequence's resistance to enzymatic degradation, while the N-terminal acetylation and the C-terminal amide cover the chain ends. A molecule with such a sharply defined structure yields a highly reproducible chromatographic profile and is therefore useful as a model compound in comparative peptide research. With five units of equal origin and specification, this composite reference set is tailored to longer-term measurement series and method validation in which successive runs must rely on identical material.

Aplikace v laboratorním kontextu

V rámci peptidové chemie a analytické práce se MT2 vyskytuje mimo jiné v následujících oblastech výzkumu in vitro:

• Výzkum vztahu struktura-aktivita regarding the influence of the non-canonical residues norleucine and D-phenylalanine on the spatial arrangement of the closed ring.
• Výzkum peptidové chemie towards solubility, aggregation tendency, and purification behavior of cyclic chains with free side-chain functions in aqueous and mixed media.
• Studie enzymatické stability in which the degradation of the lactam closed ring is monitored chromatographically under controlled conditions.
• Vývoj a validace analytických metod (HPLC, LC-MS, peptide mapping) where five units from the same batch make it possible to capture retention time, exact mass, and fragmentation pattern across successive runs and to determine reproducibility between series.

Specifikace

Tvar, manipulace a skladování

Each unit consists of 10 mg of freeze-dried powder (lyophilisate), white to off-white in color, in a sealed glass vial with a butyl rubber septum and an aluminium shrink cap. The lyophilisate is hygroscopic; exposure to ambient moisture can lead to clumping and adversely affect the analytical baseline. For this reason, the vials remain closed until they are taken into processing in the laboratory.

The sealed lyophilisate should be stored at 2–8 °C, in a dark and dry place, in the original packaging. Allow a refrigerated vial to reach ambient temperature before opening to limit condensation on the powder, and limit temperature fluctuations. In addition, the usual laboratory precautions apply: a clean work surface, gloves and eye protection, and recording of the batch number and opening date in the lab journal. Of the five units, only one needs to be opened per measurement series; the others remain sealed.

Analytická kvalita

In the case of a conformationally restricted ring structure, an unambiguous chromatographic profile is a prerequisite for reproducible analytical work: ring-opening products, shortened sequences, or residual solvents can obscure the interpretation of measurement results. Our MT2 is supplied with a purity of ≥ 99%, determined by HPLC analysis in accordance with the corresponding Certificate of Analysis. The available Certificates of Analysis can be viewed on our website. stránka s výsledky laboratorních testů.

Důležité upozornění

Tento produkt dodáváme výhradně pro laboratorní výzkum a analytické práce. Není určen pro diagnostické ani terapeutické aplikace a výslovně není určen k použití u lidí nebo zvířat. Tento produkt není potravinou, doplňkem stravy, kosmetickým přípravkem ani registrovaným léčivým přípravkem. Zakoupením tohoto produktu kupující potvrzuje, že je starší 18 let a bude jej používat výhradně v kontrolovaném výzkumném nebo laboratorním prostředí.