Hormone Peptides

PT-141 (Bremelanotide)

Catalog #: P41

PT-141 is a cyclic melanocortin agonist selective for MC3R/MC4R with minimal MC1R activity. The first melanocortin peptide identified to act through CNS mechanisms for sexual function and autonomic signaling research.

Catalog Number P41
Sequence Ac-Nle-c[Asp-His-D-Phe-Arg-Trp-Lys]-OH
Primary Targets MC3R, MC4R
Structure Cyclic heptapeptide

Available SKUs

Model Specification MOQ
P41 10mg / 10ml 1 vial
Ships within 5-7 business days
Certificate of Analysis included
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Product Overview

PT-141 is a cyclic melanocortin agonist selective for MC3R/MC4R with minimal MC1R activity. The first melanocortin peptide identified to act through CNS mechanisms for sexual function and autonomic signaling research.

Research Applications

  • MC3R/MC4R-selective melanocortin agonist
  • Minimal MC1R activity — reduced pigmentation effects vs. MT-2
  • CNS-mediated mechanism via hypothalamic MC4R
  • Modulates descending autonomic signaling pathways
  • Structural derivative of MT-2 with shifted receptor selectivity

Key Features

  • ≥99% purity confirmed by RP-HPLC and ESI-MS
  • For laboratory research use only

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Catalog Number P41
Sequence Ac-Nle-c[Asp-His-D-Phe-Arg-Trp-Lys]-OH
Primary Targets MC3R, MC4R
Structure Cyclic heptapeptide
Molecular Weight ~1025.2 Da
Form Lyophilized powder
Purity ≥99% (RP-HPLC)
Storage -20°C, desiccated

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