PT-141, also known as Bremelanotide, is a synthetic cyclic heptapeptide and an analogue of α-melanocyte-stimulating hormone (α-MSH). Its CAS number is 189691-06-3 with molecular weight of 1025.16 Da. 

This peptide functions as a melanocortin receptor agonist, widely adopted in laboratory studies focusing on MC3R and MC4R receptor interactions, neuroendocrine signalling and central nervous system related research. It serves as a valuable research tool for exploring melanocortin pathway mechanisms in preclinical trials.

Appearance: White to off-white sterile lyophilized powder. Quality control: Purity ≥99% verified by HPLC and mass spectrometry. Batch-specific COA documents can be provided upon request for quality inspection and batch traceability.

Packaging: Vacuum-sealed in sterile glass vials. Storage instruction: Store unopened vials at -20°C, keep away from light and moisture. Repeated freeze-thaw cycles should be avoided to prevent loss of peptide activity.