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

As a melanocortin receptor agonist, this peptide is commonly applied within laboratory research targeting MC3R and MC4R binding activities, neuroendocrine signal transduction, and central nervous system investigations. It acts as a practical research reagent for examining melanocortin pathway mechanisms in preclinical research.

Appearance: White or slightly off-white, sterile lyophilized powder. Quality Control: HPLC and mass spectrometry testing confirm a minimum purity of 99%. Batch-wise COA reports are available on demand for quality verification and full batch traceability.

Packaging: Vacuum-sealed inside sterile glass vials. Storage Guidelines: Keep unopened vials at -20°C, protected from light and humidity. Do not subject the product to repeated freeze-thaw cycles, which may degrade peptide bioactivity.