PT-141 10MG (Cyclic α-MSH Analog)
PT-141 is a synthetic cyclic heptapeptide analog of alpha-melanocyte stimulating hormone (α-MSH) studied as a melanocortin receptor agonist with activity at MC3R and MC4R. For PT-141 (Ac-Nle-cyclo[Asp-His-D-Phe-Arg-Trp-Lys]-OH), each vial is labeled 10MG, molecular formula C50H68N14O10, molecular weight 1,025.2 Da, CAS 189691-06-3.
Published laboratory work with PT-141 (Ac-Nle-cyclo[Asp-His-D-Phe-Arg-Trp-Lys]-OH) has examined melanocortin receptor binding and selectivity panels, MC3R/MC4R signal transduction studies, structure-activity comparison of melanocortin analogs. Each lot is manufactured under sterile conditions, lyophilized in single-use research vials, and labeled with its production lot for traceability.
Supplied for in-vitro laboratory research use only. Not for human or veterinary consumption, administration, diagnostic or therapeutic use.
Synthetic cyclic α-MSH analog studied in laboratory models for MC3R/MC4R signaling, melanocortin receptor selectivity and central neuroendocrine pathway research. Lyophilized under sterile conditions. For laboratory research use only, not for human or veterinary use.
Background reading on this compound in the ENOS Lab Notes: Melanocortin MC4R Ligand Research: What's New in 2026 and Kisspeptin and the HPG Axis: A 2026 Research Review.
Background reading: how to read a certificate of analysis, why purity and identity are separate tests and storage and handling guidance.
Comparing melanocortin receptor selectivity? See Melanotan II 10MG, the closely related non-selective analog.
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These products are sold strictly for in-vitro laboratory research and are not intended for human consumption, diagnosis, treatment, or any therapeutic use. Purchaser must be 18 years of age or older and confirms they are a qualified researcher.
Compound identity
Listed on the storefront as PT-141. The compound information for this research vial is below.
- Compound name
- PT-141 (Ac-Nle-cyclo[Asp-His-D-Phe-Arg-Trp-Lys]-OH)
- Also known as
- Bremelanotide, PT 141, PT141, Ac-Nle-cyclo[Asp-His-D-Phe-Arg-Trp-Lys]-OH
- Molecular formula
- C50H68N14O10
- Molecular weight
- 1,025.2 Da
- CAS number
- 189691-06-3
- Vial size
- 10MG
Product Information
Research DatasheetProduct Overview
PT-141 is a synthetic cyclic heptapeptide analog of alpha-melanocyte stimulating hormone (α-MSH) studied as a melanocortin receptor agonist with activity at MC3R and MC4R. In laboratory research it is used to investigate melanocortin receptor selectivity, cAMP signal transduction, and central neuroendocrine pathway pharmacology. Lyophilized under sterile conditions. For laboratory research use only. Not for human or veterinary use.
Molecular Profile
Research Applications
- ◆Melanocortin receptor binding and selectivity panels
- ◆MC3R/MC4R signal transduction studies
- ◆Structure-activity comparison of melanocortin analogs
- ◆Peptide stability and reconstitution research
Quality Standards
Lab documentation: available on request, info@enosusa.com
For in-vitro research use only. Not for human consumption, diagnosis, or treatment.
Synthetic cyclic α-MSH analog studied in laboratory models for MC3R/MC4R signaling, melanocortin receptor selectivity and central neuroendocrine pathway research. Lyophilized under sterile conditions. For laboratory research use only, not for human or veterinary use. All ENOS research vials are lyophilized, sealed under sterile conditions, and shipped with cold-chain packaging where appropriate.
- ◆MC3R/MC4R signaling research
- ◆Receptor selectivity studies
- ◆10MG lyophilized vial
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