MT-1, also known in research literature as Melanotan I or afamelanotide, is a synthetic alpha-MSH analogue studied in melanocortin receptor pathway models. Laboratory literature discusses it around MC1R-associated signalling, peptide analogue stability, pigmentation-pathway models, receptor selectivity, and melanocortin pharmacology.

This product is positioned only as a laboratory reference material for lawful analytical and R&D use. Any cosmetic, tanning, veterinary, therapeutic, or body-use framing is outside the intended product scope and should not be used in site copy or customer communications.

This product is supplied strictly for lawful research, laboratory, analytical, educational, or R&D purposes where permitted by applicable law. It is not intended for human or animal use.

Unit	1 Vial
Physical Appearance	White to off-white lyophilized powder
Salt Form	Acetate or batch-specific salt
Peptide Purity	Batch-specific; see COA
Sequence	Ac-Ser-Tyr-Ser-Nle-Glu-His-D-Phe-Arg-Trp-Gly-Lys-Pro-Val-NH2
Molecular Mass	1646.8 g/mol
CAS Number	75921-69-6; acetate-related registry may vary
Molecular Formula	C78H111N21O19
Solubility	Soluble in sterile water or bacteriostatic water.
Storage	Lyophilized: -20 deg C long term; protect from moisture. Prepared solutions: 2-8 deg C short-term laboratory handling.
Additional Info	Synthetic alpha-MSH / melanocortin analogue; studied for MC1R and melanocortin receptor pathway research; supplied strictly for research use only.

Storage of Lyophilized Peptides

Upon receiving the lyophilized peptide, store it at 4 °C or colder and away from bright light. Lyophilized peptides are stable at room temperature for weeks, but for longer-term storage, it is safer to store them at -20 °C or colder. Exposure to moisture can greatly decrease long-term stability. Before opening a container stored in cold conditions, allow it to equilibrate to room temperature first to reduce moisture uptake from the surrounding atmosphere.

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 do not reduce their quality or stability. Even at high summer temperatures, peptides in lyophilized form remain stable for several weeks.

Storage of Peptide Solutions

The shelf life of peptide solutions is limited. Freezing aliquots can help prolong storage life. In general, peptide solutions are commonly stored for around 3 or more weeks at +4 °C and around 3-4 months at -20 °C. Avoid repeated freeze-thaw cycles, as this can degrade peptides.

Melanotan-1

Storage of Lyophilized Peptides

Peptides in Transport

Storage of Peptide Solutions

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Melanotan-1

Storage of Lyophilized Peptides

Peptides in Transport

Storage of Peptide Solutions

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