Overview

Compound: PT-141

Full Name: Cyclic heptapeptide

Molecular Weight: 1025.2g/mol

Molecular Formula: C₅₀H₆₈N₁₄O₁₀

CAS Number: 189691-06-3

Purity (HPLC): 99.8%

Mass Confirmation: LC-MS confirmed

Form: Lyophilised powder

Storage: -20°C lyophilised, 24 months

Research use only. Not for human or veterinary consumption. By purchasing you confirm you are 18 or over and understand the research-use-only nature of this product.

Product Description

PT-141 (also known as Bremelanotide) is a lab-made peptide derived from a fragment of alpha-MSH, the same parent hormone that KPV comes from — though PT-141 targets a different part of that hormone's signalling activity. It's a synthetic analogue designed to activate specific melanocortin receptors rather than the receptors linked to pigmentation. Because it's a well-defined, stable peptide, it can be studied consistently across cell-based and animal research models.

In lab studies, PT-141 appears to act primarily on melanocortin 4 receptors (MC4R), a receptor pathway studied in preclinical models for its role in central nervous system signalling. Researchers use it as a tool to study how this receptor pathway functions and what downstream signalling it triggers. As with other research peptides, the specific results depend on the model system, receptor density, and experimental conditions used.

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