Buy PT-141 Online
PT-141 (Bremelanotide) is a synthetic cyclic heptapeptide and potent melanocortin receptor agonist with high affinity for the MC3-R and MC4-R subtypes. Originally developed as a metabolite of Melanotan-II, this research peptide enables sophisticated investigations into melanocortin receptor signaling, central nervous system pathways, and neuroendocrine regulation.
When you buy PT-141 from NextGen Peptide, you acquire a premium compound backed by complete analytical documentation. Every vial we sell PT-141 with includes a third-party Certificate of Analysis (COA) verifying ≥98% purity through HPLC and mass spectrometry.
Researchers consistently order PT-141 online from us because we eliminate the uncertainty that plagues peptide sourcing. No hidden impurities. No questionable handling. Just verifiable, lab-tested peptide delivered with full chain-of-custody transparency.
PT-141 functions as a non-selective melanocortin receptor agonist with demonstrated blood-brain barrier penetration. Unlike its precursor Melanotan-II, PT-141 exhibits reduced melanogenic activity while retaining significant MC4-R mediated central nervous system effects. This unique pharmacological profile makes it invaluable for studying melanocortin pathways independent of melanogenesis.
Why do leading neuroscience and endocrinology laboratories purchase PT-141 from NextGen Peptide? Because we treat every batch with pharmaceutical-grade rigor. Each shipment includes endotoxin screening (<1 EU/mg), residual solvent analysis, and complete chromatographic data.
Ready to advance your melanocortin receptor research? Order PT-141 online today from a supplier that prioritizes data integrity.
Why Purchase PT-141 From NextGen Peptide?
Researchers who order PT-141 from us receive:
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≥98% purity verified by independent HPLC
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Comprehensive COA included with every vial
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Lyophilized format for optimal long-term stability
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Endotoxin tested – <1 EU/mg specification
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24-hour dispatch on most orders
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Secure checkout – credit card and cryptocurrency accepted
We do not simply sell PT-141. We provide documented quality for reproducible, publication-ready research.
Technical Specifications
| Parameter | Specification |
|---|---|
| Purity (HPLC) | ≥98% |
| Peptide Content | ≥90% |
| Endotoxin | <1 EU/mg |
| Residual Solvents | Meets ICH guidelines |
| Appearance | White lyophilized powder |
| Molecular Weight | 1025.2 g/mol (verified by MS) |
| Sequence | Ac-Nle-cyclo[Asp-His-D-Phe-Arg-Trp-Lys]-OH |
| Storage (lyophilized) | -20°C |
| Storage (reconstituted) | 4°C for up to 4 weeks |
Every lab-tested peptide batch is fully traceable with accompanying documentation.
Research Applications
PT-141 is indicated for in-vitro and preclinical research only. Typical applications include:
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Melanocortin MC3-R and MC4-R binding assays
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Central nervous system melanocortin pathway research
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Neuroendocrine regulation studies
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Appetite and energy homeostasis investigations
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Receptor selectivity and structure-activity relationship studies
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Blood-brain barrier penetration assays
Reconstitution protocol: Use sterile bacteriostatic water or PBS (pH 7.2–7.4). Add slowly to vial wall. Gently swirl. Do not vortex – peptide damage may occur.
Handling note: Aliquot reconstituted peptide into single-use volumes to avoid repeated freeze-thaw cycles.
How to Order PT-141 Online
To purchase PT-141 for your research program:
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Select desired quantity (5mg, 10mg, or bulk)
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Add to secure shopping cart
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Complete encrypted checkout
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Receive COA via email immediately
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Receive tracking information within 24 hours
For institutional or bulk inquiries exceeding 50mg, contact our customer support team for customized pricing.
Frequently Asked Questions
Is PT-141 approved for human use?
No. This research peptide is exclusively for laboratory and preclinical use. Not for human consumption.
Do you provide COAs before purchase?
Yes. Contact our support team to review COA documentation prior to ordering.
Can I order PT-141 online internationally?
Yes, where local regulations permit. Buyers assume full responsibility for compliance with import laws.
What is your quality guarantee?
If any product fails to meet ≥98% purity specification, we offer full replacement or refund.
How does PT-141 differ from Melanotan-II?
PT-141 (Bremelanotide) is a metabolite of Melanotan-II with reduced melanogenic activity while retaining MC4-R mediated central nervous system effects. PT-141 has a distinct cyclic structure and different receptor binding profile.
What quantities do you offer?
We offer 5mg, 10mg, and bulk quantities. Contact us for custom sizes.
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