Description
Basic introduction
PT-141, also known as bremelanotide in the scientific literature, is a synthetic melanocortin-related peptide. Research has examined receptor-associated and central nervous system responses in experimental and clinical settings.
The scientific name links this material to a body of research, but it does not make an independently supplied reagent equivalent to a pharmaceutical formulation. Laboratory characterization and published clinical evidence address different questions.
Mechanism of action · Research context
Melanocortin receptor context
PT-141 has been studied through melanocortin pathways. The original translational work considered MC3/MC4-related activity as part of its central signaling context.
Central response measurements
Animal experiments examined neuronal activation markers. Such measurements provide a mechanistic endpoint and should remain distinct from behavioral or clinical outcomes.
Model-dependent interpretation
Receptor, animal and human studies use different endpoints. A response observed in one system cannot be assumed to quantify the complete activity or selectivity in another.
Extended research considerations
Receptor comparisons
Compare melanocortin-related materials using defined receptor assays. Shared structural ancestry with Melanotan II does not establish identical receptor profiles or biological responses.
Behavioral and molecular endpoints
A neuronal marker and a behavioral observation are complementary. Their relationship requires an appropriate study design rather than direct substitution of one for the other.
Batch documentation
Review peptide identity, content and formulation details. Clinical publications describe their own tested preparations and do not certify the composition or suitability of an unrelated vial.
Material and packaging
Listed appearance: White Lyophilized Powder.
Available kit specifications: 10 mg × 10 vials. Select an option above to view its current price and availability.
Storage and handling
Source-listed storage condition: Store at 20°C to 25°C (Do not freeze). Follow the handling instructions supplied with the actual batch and your laboratory's procedures.
Analytical documentation
Reference analytical documents are available with this listing. Check the material identity, batch number and test date against the batch supplied; contact us for current batch documentation.
Scientific references
These publications describe the studied molecules and experimental models. They do not certify the identity, quality or effects of a particular supplied batch.
- PT-141 translational melanocortin research
- PT-141 early clinical investigation

View report
Caspian F. –
PT-141 is my primary raw material for melanocortin receptor pathway research. The standardized amino acid sequence perfectly matches official reference data, and the lyophilized acetate formulation delivers stable activity post-reconstitution. All glass vials arrived fully intact with no cracks or leaks during international shipping.
Una M. –
The listed CAS registry number, molecular formula and 1025.17 g/mol molecular weight align exactly with authoritative biochemical specification databases. This research-grade peptide contains no filler bulking agents or truncated peptide fragments, and steady room-temperature storage eliminates irreversible protein denaturation caused by freeze-thaw cycles.
Vale R. –
I ran side-by-side comparative cell culture trials with Bremelanotide acetate sourced from 6 different manufacturers, and this P41 variant delivers far superior solubility with minimal glass-wall powder adhesion. Slow, gentle circular swirling achieves full dissolution; harsh violent shaking will split the cyclic peptide backbone and skew quantitative assay readouts.
Elias H. –
I’ve tested Bremelanotide acetate from multiple suppliers side-by-side, and this lyophilized PT-141 offers far superior solubility with minimal glass-wall adhesion. Slow gentle swirling fully solubilizes the powder; aggressive shaking will break the cyclic peptide structure and skew cell assay results.
Gareth Q. –
Consistent certified ≥99% HPLC purity, fully verified complete cyclic amino acid sequence, simple room-temperature non-freeze storage guidelines and rock-solid cross-batch uniformity make P41 my permanent exclusive PT-141 peptide supply. I place monthly recurring bulk restock orders for my long-term melanocortin signaling and pigmentation lab research projects, with zero fluctuation in product quality, solubility or biological activity between every shipment.