PT-141 UK — buying guide

PT-141, also known as bremelanotide, is a synthetic cyclic heptapeptide and melanocortin-receptor agonist derived from Melanotan II. It is the deaminated, ring-modified metabolite of that parent compound, carries CAS number 189691-06-3, and has a molecular weight of 1025.18.

In the research literature PT-141 is investigated within melanocortin-pathway studies, with reported activity at the MC3R and MC4R subtypes, in animal and cellular models. These investigations focus on receptor pharmacology and central signalling and remain confined to controlled laboratory settings. Sova supplies it strictly as a reference material — not for human or veterinary use, and with no claim of any effect in people.

PT-141 and its parent Melanotan II have very similar masses, so a mass-spec result tied to the batch is exactly what to check to confirm you have PT-141 and not the parent compound.

Every Sova PT-141 vial ships with a batch-linked Certificate of Analysis. Before you buy, confirm the CoA references the batch on the vial, that identity is confirmed by ESI mass spectrometry against the expected 1025.18 Da, and that purity is measured by reverse-phase HPLC. Enter the batch at /verify to pull the certificate.