FOR LABORATORY RESEARCH USE ONLY — not for human or veterinary use, diagnosis, treatment, or cosmetic application. Buyers must be 21+ and legally permitted to purchase research chemicals in their jurisdiction.Intended-use statement →
PT-141 (Bremelanotide) Wholesale
Cyclic melanocortin receptor agonist (bremelanotide) for receptor-pharmacology research
Product Identity
| CAS Number | 189691-06-3 |
| Molecular Formula | C₅₀H₆₈N₁₄O₁₀ |
| Molecular Weight | ~1,025.2 Da |
| Amino Acids | 7 (cyclic peptide) |
| Appearance | White to off-white lyophilized powder |
| Purity | ≥99% by HPLC |
| Solubility | Soluble in sterile water or PBS |
| Storage | 2–8°C, desiccated, protect from light |
| Identification | ESI-MS identity confirmation on each batch |
Available Configurations
| Configuration | Content | Best For |
|---|---|---|
| Standard Kit | 10 mg × 10 vials | Protocol validation; evaluation orders |
| Custom | Custom mg × custom vials | OEM; private-label; protocol-specific |
Research Background
PT-141 (bremelanotide) is a cyclic heptapeptide analogue of α-melanocyte-stimulating hormone. It is used in receptor-pharmacology research as a melanocortin receptor agonist with a different selectivity profile from the linear analogue Melanotan I, which is why the two are commonly compared in structure–activity studies of the α-MSH series.
Proposed Mechanisms
Research Focus Areas
Melanocortin receptor selectivity studies
Cyclic α-MSH analogue comparisons
Melanocortin signalling in neurological research models
Quality Specifications
| Parameter | Method | Criterion |
|---|---|---|
| Purity | HPLC at 214 nm, C18 column | ≥99.0% peak area |
| Identity | ESI-MS | Da |
| Appearance | Visual inspection | White to off-white lyophilized powder |
| Purity assay | Amino acid analysis | ≥80% net peptide |
| Residual moisture | Karl Fischer | ≤3% |
| Solubility | Reconstitution test | Soluble in sterile water or PBS |
Tiered Wholesale Pricing
| Kit size | Code | List price |
|---|---|---|
| 10 mg × 10 vials | P41 | US$58 |
US$58–58 per kit (10 vials), from our published wholesale price list; tiered volume discounts apply (see the tier table) — source:wholesale price list (PDF, updated 2026-08-08).
| Volume | Discount | For |
|---|---|---|
| 1 kit | List price | Evaluation; competitive analysis |
| 5+ kits | 10% off | Initial portfolio expansion |
| 20+ kits | 20% off | Mid-size distributors |
| 50+ kits | 30% off | Regional distributors |
FAQ
What is PT-141?
PT-141 (bremelanotide) is a cyclic melanocortin receptor agonist peptide, CAS 189691-06-3, supplied as a laboratory research reagent.
How does PT-141 differ from Melanotan II?
Both are cyclic melanocortin agonists studied in the same receptor family; they differ in sequence and in their reported receptor-subtype selectivity profiles, which is why comparative receptor studies use them as separate tools.
Is any human-use information provided?
No. We supply no dosing, administration or application information. This product is FOR LABORATORY RESEARCH USE ONLY and is not for human or veterinary use.
What is the kit configuration and documentation?
10 mg × 10 vials per kit, with a batch-specific COA (HPLC purity, MS identity), invoice and packing list.
All products are manufactured for laboratory research purposes only. PT-141 is labeled FOR LABORATORY RESEARCH USE ONLY. Not for human or veterinary use, diagnosis, treatment, prophylaxis or any clinical, cosmetic, dietary or household application. Not a dietary supplement, pharmaceutical ingredient, cosmetic ingredient or approved drug substance. Buyers are responsible for verifying the legal status of importation and possession in their destination country.
Ready to Source PT-141?
Bulk pricing, tiered discounts up to 30%, COA with every order.