Melanotan II is a synthetic cyclic heptapeptide (Ac-Nle-cyclo[Asp-His-D-Phe-Arg-Trp-Lys]-NH₂) with reported non-selective binding affinity at melanocortin receptors MC1R through MC5R. It is supplied as a lyophilized powder for use as a laboratory reference compound.

Molecular Identifiers:

• CAS Number: 121062-08-6
• Molecular Formula: C₅₀H₆₉N₁₅O₉
• Molecular Weight: 1024.2 g/mol
• Purity: ≥99% (HPLC verified, third-party COA available)
• Form: Lyophilized powder
• Appearance: White to off-white powder
• Storage: −20°C in sealed vial, protected from light and moisture
• Shelf Life: 24 months unopened from date of manufacture

Handling Notes:

This compound is supplied strictly for qualified researchers operating within a licensed laboratory setting. Appropriate PPE and standard laboratory safety protocols should be observed during handling. Refer to the accompanying Safety Data Sheet (SDS) prior to use.

⚠ RESEARCH USE ONLY — This product is not approved by the FDA for human or veterinary use. It is not a drug, supplement, or food product. It is intended solely for in vitro laboratory research by qualified scientists. Not for self-administration. Not for resale to end consumers.