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Melanotan II is a cyclic lactam-bridged heptapeptide analogue of α-MSH(4-10) with superpotent melanotropic activity across melanocortin receptors (MC1, MC3, MC4, MC5).
In a pilot phase 1 study, five low subcutaneous doses produced measurable skin darkening in healthy volunteers 1; a subsequent placebo-controlled study observed erectile responses in men with psychogenic erectile dysfunction, leading to the development of the MC4R-focused metabolite bremelanotide 2.
At a glance
Non-selective melanocortin agonist (MC1/3/4/5)
Phase 1 pigmentation and sexual-function data
10 mg vials
Research use only. All products are sold strictly for laboratory research and development purposes. They are not intended for human or veterinary use, diagnosis, treatment, cure or prevention of any disease. Not for human consumption. Summaries above describe published findings in laboratory and clinical research models and do not constitute claims about this product.
Form
Lyophilized powder
Purity
HPLC-verified — Certificate of Analysis available on request
Pack size
Box of 10 vials
Storage
Lyophilized: −20 °C, protected from light (2–8 °C short-term). Reconstituted: 2–8 °C.
Sequence
Ac-Nle-cyclo[Asp-His-D-Phe-Arg-Trp-Lys]-NH2
Formula
C50H69N15O9
Mol. weight
1024.2 g/mol
CAS No.
121062-08-6
Sequence, formula and CAS data are provided for identification. Batch-specific purity, mass-spec and HPLC data are on the Certificate of Analysis — ask for it with your order.
Dorr RT, Lines R, Levine N, et al. Evaluation of melanotan-II, a superpotent cyclic melanotropic peptide in a pilot phase-I clinical study. Life Sci. 1996;58(20):1777-84.