Free shipping on all orders over $100 (US) and $300 (International) support@swisschems.is +1 (870) 533-5581

Product Usage: This product is intended for research purposes only.

All product information available on this website is for educational purposes only. Any form of bodily introduction into humans or animals is strictly prohibited by law. This product should only be handled by licensed and qualified professionals. It is not a drug, food, or cosmetic, and must not be misbranded, misused, or mislabeled as such.

PT-141 (Bremenalotide), 10mg

Same Trusted Formula. Fresh New Look.

During our packaging transition, you may receive products with either our previous or updated label. Rest assured, the formulation, purity and quality remain exactly same as standards.

Accepted Payment MethodsYour data is protected with 256-bit encryption.
Accepted payment methods
Shipping

Same-day shipping on USA orders placed before 2PM EST.

View Shipping Policy →
Returns

30-day hassle-free returns on unopened products.

View Returns Policy →
Lab Tested

Every batch is tested for purity, potency and quality.

View Lab Results →
Support

Have a question? Our team is here to help you.

Contact Us →

PT-141 (Bremelanotide) is a synthetic cyclic lactam peptide and melanocortin receptor agonist that is a likely metabolite of Melanotan II, differing in that it carries a carboxyl group where MT-II carries an amide. It has high affinity for MC3R and MC4R. Research applications include MC3R/MC4R pharmacology, melanocortin system central/peripheral signalling, and dopaminergic pathway interaction studies.

  • High Purity – 99% Purity Guaranteed
  • Independently Lab Tested
  • Research Grade Quality
  • For Laboratory Research Use Only

3D Molecular Structure

Drag to rotate · scroll to zoom
Loading 3D structure…
PT-141 (Bremenalotide), 10mg1 vial | KIT (10 vials)
Chemical Formula C50H68N14O10
Synonyms Bremelanotide, PT141, Vyleesi (trade name)
Molar Mass 1,025.2 g/mol
CAS Number 189691-06-3
PubChem CID 9941379
Total Compound Content 10 mg per vial
Shelf Life 36 months
PT-141 (Bremelanotide) is a cyclic heptapeptide melanocortin receptor agonist developed as a synthetic analogue of Melanotan II. Its primary structural distinction from Melanotan II is the presence of a carboxyl terminus in place of the corresponding amide group, resulting in differences in receptor interaction characteristics and physicochemical properties. PT-141 exhibits high affinity for melanocortin receptor subtypes MC3R and MC4R and has been extensively investigated as a research tool for melanocortin receptor pharmacology and receptor-mediated signaling mechanisms. Experimental studies have examined the relationship between PT-141 and melanocortin receptor activation, ligand-receptor binding dynamics, receptor subtype selectivity, and downstream signaling pathways associated with MC3R and MC4R activity. Research applications include melanocortin receptor characterization, receptor pharmacology, structure-activity relationship investigations, ligand-receptor interaction studies, and mechanistic evaluation of melanocortin signaling systems. Supplied as a lyophilized preparation (10 mg/vial). Independently third-party HPLC-tested; COA available per batch.

Every batch is independently lab tested for identity, purity and potency. View our lab testing program →

What distinguishes PT-141 from other melanocortin receptor agonists?

PT-141 is a cyclic heptapeptide melanocortin receptor agonist characterized by high affinity for MC3R and MC4R receptor subtypes. Its receptor interaction profile differs from other melanocortin ligands through variations in receptor subtype selectivity, binding characteristics, and signaling activity. These properties have established PT-141 as a valuable research tool for investigating melanocortin receptor pharmacology, receptor-mediated signaling mechanisms, and ligand-receptor interactions.

What is the structural difference between PT-141 and Melanotan II?

PT-141 and Melanotan II share a closely related cyclic heptapeptide framework but differ at the C-terminal region of the molecule. PT-141 contains a free carboxyl group, whereas Melanotan II contains a corresponding amide functionality. This structural variation influences physicochemical properties, receptor interaction characteristics, and pharmacological behavior, making the two compounds useful for comparative structure-activity relationship investigations within melanocortin receptor research.

Why is PT-141 useful for MC3R and MC4R research?

PT-141 exhibits strong activity at MC3R and MC4R receptor subtypes and has been extensively utilized in studies examining receptor activation, ligand-binding dynamics, receptor subtype selectivity, and downstream melanocortin signaling pathways. Its well-characterized pharmacological profile makes it a useful research tool for investigations involving melanocortin receptor biology, receptor pharmacology, signal transduction mechanisms, and comparative analyses of melanocortin receptor agonists.

Subscribe to receive our latest news

85% of users stay up-to-date with our newsletter