PT-141, also referred to as Bremelanotide, is a synthetic cyclic heptapeptide derived from alpha-melanocyte-stimulating hormone (α-MSH). It has a CAS registry number of 189691-06-3 and a molecular weight of 1025.16 Da.

As a melanocortin receptor agonist, this peptide is commonly utilized in preclinical lab research. Researchers use it to investigate its binding affinity for MC3R and MC4R, neuroendocrine signaling cascades, and activities linked to the central nervous system. It acts as a key research reagent to uncover the biological mechanisms governing the melanocortin signaling pathway.

Appearance: Sterile lyophilized powder, ranging in color from white to light off-white. Quality Control: HPLC and mass spectrometry confirm a purity level of ≥99%. COA certificates are available for every batch on demand, supporting quality verification and full batch traceability.

Packaging: Vacuum-sealed within sterile glass vials. Storage Guidance: Keep unopened vials at -20°C, protected from light and humidity. Do not allow repeated freeze-thaw cycles, which lead to loss of the peptide’s bioactivity.