Melanotan 1, often written MT1 or Melanotan I, is a synthetic analogue of alpha-MSH with selectivity at the MC1R receptor. It is used in melanocyte culture to study melanogenesis and receptor binding, and NuVion stocks it in Australia as a 10mg lyophilised vial.
- Synthetic analogue of alpha-MSH, selective at the MC1R receptor
- Used in melanocyte culture models
- Applied in melanogenesis and receptor binding assays
- Supplied lyophilised, purity by RP-HPLC and identity by mass spectrometry
Melanotan 1 structure and research use
Melanotan 1 keeps the full 13 amino acid length of alpha-melanocyte-stimulating hormone with two substitutions: norleucine at position 4 and D-phenylalanine at position 7. Both changes make the linear chain more resistant to breakdown than the native hormone. In the laboratory it is used in melanocyte models for work on MC1R binding and melanogenesis.
Melanotan 1 research applications
- Saturation and competition radioligand binding across MC1R to MC5R, with the iodinated peptide serving as tracer
- cAMP accumulation in B16 cells and in HEK293 lines expressing a single melanocortin receptor subtype
- Melanin content by absorbance of alkali-solubilised pigment and tyrosinase activity by L-DOPA oxidation in cultured melanocytes
- Comparing cAMP output of MC1R coding variants such as R151C against the wild-type receptor in heterologous cells
Melanotan 1 key facts
| Type | Synthetic peptide, linear alpha-MSH analogue |
|---|---|
| Amino acid count | 13 |
| Molecular formula | C78H111N21O19 |
| Molecular weight | 1646.8 g/mol |
| CAS number | 75921-69-6 |
| Also known as | Afamelanotide, NDP-MSH, NDP-alpha-MSH, [Nle4, D-Phe7]-alpha-MSH |
| Vial size | 10mg, lyophilised |
| Purity | 99.69% by RP-HPLC, Janoshik Analytical |
| Analysed | 24 March 2026 |
Research profile: Melanotan 1: structure, mechanism and research use
Independent test: a sample of this product was analysed by Janoshik Analytical on 24 March 2026, purity 99.69% by RP-HPLC. The certificate is shown in the lab band on this page.






