Melanotan II Vial
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Melanotan II 10mg

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Analytical Documentation

Latest test results

Verified Batch HPLC / FTIR

Third-Party Lab Results

Every batch is independently tested by accredited analytical laboratories to certify identity, sequence, and purity standards (>98%).

Lab Report (PDF)
Safety Compliance GHS / REACH

Safety Data Sheet (SDS)

Complete hazard analysis, physical-chemical properties, handling guidelines, and laboratory toxicological profile.

Research overview: Melanotan II

Melanotan II is a cyclic synthetic peptide, not linear alpha-MSH. Its ring-shaped structure matters in receptor and structure-activity comparisons.

Studies cover melanocortin receptors, pigment cells, food-intake endpoints, and behaviour tests. Each finding applies only to the experimental system used.

Melanocortin-receptor studies

Studies compare binding and signalling across melanocortin-receptor types. This work helps researchers examine how a cyclic peptide’s structure affects receptor activity. Pigment-related experiments are receptor-system observations, not a product outcome.

Behavioural and metabolic endpoints

Other studies measure food intake, alcohol intake, and metabolic endpoints. The original model, protocol, and controls are needed to understand these results.

Specifications

Molecular profile Sequence

Ac-Nle-cyclo[Asp-His-D-Phe-Arg-Trp-Lys]-NH2

Molecular mass

  • 1024.18 g/mol

CAS number

  • 121062-08-6

Molecular formula

  • C50H69N15O9

Material record

Physical appearance

White to off-white lyophilized powder

Solubility

Soluble in bacteriostatic water and suitable aqueous laboratory solvents.

Product note: Synthetic cyclic melanocortin analogue; supplied strictly for research use only.

Peptides in transport

Peptides in lyophilized form are supplied in glass vials by standard shipping methods and do not require refrigeration. Short-term temperature fluctuations during transport will not reduce their quality and efficacy. Even at high summer temperatures, the peptides in lyophilized form are stable for several weeks.

Storage of lyophilized peptides

Lyophilized peptides should be stored in a dry place, protected from light and moisture. The following storage conditions are generally recommended:

  • Room temperature (15–25 °C): Up to 3 months
  • Refrigerated (2–8 °C): Up to 6 months
  • Frozen (-20 °C or below): 3–5 years (recommended for long-term storage)

Allow the vial to reach room temperature after taking it out of the refrigerator or freezer.

Storage of reconstituted peptides

Once reconstituted, peptide solutions are generally less stable than their lyophilized form and should be stored under refrigerated conditions whenever possible. The following storage conditions are generally recommended:

  • Room temperature (15–25 °C): Avoid prolonged storage
  • Refrigerated (2–8 °C): Typically 4–8 weeks
  • Frozen (-20 °C or below): Up to 3–4 months

To preserve peptide integrity, avoid repeated freeze–thaw cycles, as these may accelerate peptide degradation.

Important:

Most manufacturers recommend discarding reconstituted peptides within 4 weeks when stored at 2–8 °C. This recommendation is intentionally conservative and may not reflect the actual chemical stability of every peptide. In our own stability studies, many peptides reconstituted in bacteriostatic water showed no detectable degradation after 12 weeks of refrigerated storage. As peptide stability is highly sequence- and formulation-dependent, this result should not be extrapolated to all peptides without supporting stability data.

Scientific references and citations will be displayed here.

Each new formulation begins with data from reliable scientific sources:

PubChem
Chemicke Listy
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Janoshik
LiquiLabs
Science Resource
PubChem
Chemicke Listy
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Janoshik
LiquiLabs
Science Resource
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