PT-141 (Bremelanotide) is a synthetic cyclic heptapeptide derived from the melanocortin peptide family. Also known as Bremelanotide peptide, PT-141 has attracted scientific interest because of its interaction with melanocortin receptors, including MC3R and MC4R.
What Is PT-141 (Bremelanotide)?
Key molecular information includes:
- Product Name: PT-141 / Bremelanotide
- CAS Number: 189691-06-3
- Molecular Formula: C50H68N14O10
- Molecular Weight: approximately 1025.2 g/mol
- Type: Synthetic cyclic heptapeptide
- Sequence: Ac-Nle-cyclo[Asp-His-D-Phe-Arg-Trp-Lys]-OH
PT-141 has been investigated in research involving melanocortin receptor signaling, MC3R/MC4R activity, peptide-receptor interactions and related neurological pathways.

PT-141 Reviews: What Should Researchers Consider?
Public Bremelanotide reviews include both positive and negative experiences. However, these reports generally relate to approved pharmaceutical Bremelanotide and should not be interpreted as reviews of research-grade PT-141.
For laboratories sourcing research-grade PT-141 peptide, more meaningful quality indicators include HPLC purity, LC-MS identity verification, batch-specific COA and manufacturing consistency.
Research-Grade PT-141 from SUNONE
As a professional PT-141 manufacturer and peptide supplier, SUNONE supplies research-grade Bremelanotide for qualified laboratory and manufacturing applications.
Researchers can review specifications, purity information and available documentation on the SUNONE PT-141 (Bremelanotide) Product Page.
When selecting a PT-141 supplier, verified molecular identity, analytical purity, COA documentation and batch consistency should be key considerations.

Disclaimer
This article is provided for scientific and educational purposes only. SUNONE PT-141 (Bremelanotide) is intended for laboratory research and manufacturing use only and is not intended for human or veterinary use, self-administration, diagnosis or treatment. References to pharmaceutical Bremelanotide do not establish the safety, efficacy or intended use of research-grade PT-141.

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