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Melanotan I (MT1) Peptide

Out of Stock
CAS
75921-69-6
Molecular weight
1646.85 g/mol
Purity (HPLC)
COA pending
Lot / COA
Pending
Quantity
Size
10mg
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Specifications

CAS
75921-69-6
Molecular formula
C78H111N21O19
Molecular weight
1646.85 g/mol
Purity (HPLC)
COA pending
Lot / COA
Pending
PubChem CID
16197727

Melanotan I (MT1) Peptide Overview

Melanotan I — also written Melanotan 1, and referred to in research shorthand as the MT1 or MT-1 peptide — is a synthetic tridecapeptide composed of 13 amino acids. It was originally derived from the naturally occurring hormone alpha-melanocyte-stimulating hormone (α-MSH), modified at two positions to resist enzymatic breakdown. Since its characterization in the early 1980s, Melanotan I has been studied extensively in controlled experimental settings for its potential influence on melanocyte activity, receptor signaling, and pigmentary processes.

Melanotan II and PT-141 are related melanocortin-receptor research peptides in the Medicina Labs catalog.

History

The peptide was first synthesized by researchers at the University of Arizona investigating more stable analogs of α-MSH, which degrades within minutes in circulation. Early experiments focused on its ability to sustain melanocyte stimulation and prolonged biological activity in pigmentation models. Over time, studies broadened into receptor, photobiology, and systemic systems, where Melanotan I has been used to examine melanogenesis and melanocortin 1 receptor (MC1R) pharmacology.

Hadley M.E. et al. (1998).

Melanotan I Structure

CAS #: 75921-69-6
Molecular Formula: C78H111N21O19
Molecular Weight: 1646.85 g/mol
PubChem ID: 16197727

Research Findings

Melanotan I has been studied in pigmentary, receptor, photobiology, and systemic models, with reports of activity in melanin synthesis, melanocortin-receptor binding, UV-response modulation, and cellular signaling. Research has also examined cAMP-mediated signaling downstream of MC1R activation in preclinical systems.

Key Areas of Research:

  • Pigmentary: Melanogenesis, eumelanin, melanocytes
  • Receptor: MC1R binding, melanocortin signaling, selectivity
  • Photobiology: UV response, phototoxicity models, skin
  • Systemic: Signaling, receptor distribution, pathway dynamics

Together, these findings suggest broad experimental utility for Melanotan I across multiple biological pathways. Its activity in pigmentary, receptor, photobiology, and systemic models provides a foundation for exploring diverse aspects of molecular biology. By influencing processes such as melanin regulation, receptor activation, and molecular signaling, Melanotan I offers a versatile platform for research into pathway dynamics and melanocortin receptor signaling within experimental settings.

Langendonk J.G. et al., New England Journal of Medicine, 2015

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Purity is measured by HPLC (High-Performance Liquid Chromatography), which separates and quantifies each component in a sample. The result is reported as a percentage on the Certificate of Analysis (COA), along with the chromatogram, for every batch.
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