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PT-141 10MG
SKU NP-PT141-10MG
$49.99
CAD
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Overview
Properties
Research
Lab Results
FAQ
PT-141 10mg overview
PT-141 (Bremelanotide, CAS# 189691-06-3) is a synthetic cyclic heptapeptide analogue of alpha-melanocyte-stimulating hormone (α-MSH) with non-selective agonist activity across melanocortin receptor subtypes. NexPept supplies it as a lyophilized research reference standard for MC4R receptor binding kinetics, signal-transduction pathway studies, and structure-activity relationship research in vitro. Not for use in any living organism.
Every lot is independently tested by a third-party analytical laboratory before it is listed. The Certificate of Analysis reports HPLC purity, mass spectrometry identity confirmation, and net-content verification, and stays published in our COA library after the batch sells out.
✓
99.72% HPLC purity on the current lot✓
Mass spectrometry identity confirmed✓
Batch number printed on every vial✓
Certificate published, not available on requestStudied in vitro for
Batch verification
Current lot
Third-party lab verified
HPLC + mass spectrometry
BatchNP-PT141-062426-01
TestedJul 28, 2026
Purity99.72%
Properties
| CAS Number | 189691-06-3 |
|---|---|
| Full Name | Bremelanotide |
| Synonyms | PT-141 |
| Compound Class | Synthetic cyclic heptapeptide — α-MSH analogue |
| Sequence Length | 7 amino acids (cyclic) |
| Molecular Formula | C₅₀H₆₈N₁₄O₁₀ |
| Molecular Weight | 1025.18 g/mol |
| Physical Form | Lyophilized powder |
| Appearance | White to off-white lyophilized powder |
| Net Quantity | 10 mg / vial |
| Analytical Method | HPLC + Mass Spectrometry |
Research context
PT-141 is used as a peptide tool compound in preclinical in vitro settings. Published work has examined its binding behaviour at MC4R and other melanocortin receptor subtypes, GPCR signal-transduction assays, receptor selectivity profiling, and structure-activity relationship studies of cyclic α-MSH analogues.
As a defined cyclic heptapeptide with consistent structural characteristics between lots, it is used in controlled laboratory environments to study receptor-ligand binding and downstream signalling. Lot-to-lot consistency matters for this kind of work, which is why every NexPept batch is published with its own purity figure rather than a blanket claim.
This compound has not been authorized by Health Canada for any therapeutic, clinical, or human use.
Further reading
PT-141 (Bremelanotide) Research Guide — NexPept compound overview and in vitro research context
PubMed — PT-141 / Bremelanotide — peer-reviewed scientific literature
NexPept COA Library — published certificates for every batch we have sold
Lab results
Certificates for the lots we have shipped. The batch number on your vial matches one of these.
Research Use Only. All products are intended solely for laboratory research use and are not for human or veterinary use. By purchasing, the buyer agrees to use these products in compliance with all applicable laws.
Frequently asked questions
What testing does each batch go through?
Identity and purity are confirmed by high-performance liquid chromatography and mass spectrometry before a lot is listed. The current lot, NP-PT141-062426-01, tested at 99.72% on July 28, 2026. If a lot has not been tested, it does not go on sale.
What class of compound is PT-141?
A synthetic cyclic heptapeptide — a 7-amino-acid ring — engineered as an analogue of alpha-melanocyte-stimulating hormone with non-selective agonist activity across melanocortin receptor subtypes. It is supplied as a lyophilized powder and handled as a peptide reference standard, not as a formulation.
How does PT-141 differ from Melanotan-2?
Both are cyclic heptapeptide analogues of alpha-MSH, but they carry different amino-acid substitutions that give each a distinct melanocortin receptor selectivity profile. Researchers working across both sequences typically source them as separate single-compound vials.
What physical form does it arrive in?
A white to off-white lyophilized (freeze-dried) powder, sealed in a single vial. Net quantity is 10mg. No preparation, reconstitution or handling instructions are supplied; those are determined by qualified personnel under your own institutional protocols.
All products are intended for laboratory research use only. Not for human or veterinary use.
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Frequently Asked Questions
Everything you need to know before ordering
Product Quality Summary is available on every product page. Independent third-party Certificates of Analysis are available upon request for select batches and may be verified directly with the testing laboratory.
Please note that all sales are final. Due to the nature of our products and inventory, we are unable to accept returns. Product quality is independently assessed via 3rd party laboratory testing to ensure quality, and all purchases made via this website are done with the implied consent that you acknowledge and accept the empirical testing provided on each product page. In the event of dissatisfaction or quality concern, please consult with us via email so that we can try to assist.
We ship to addresses within Canada only. All orders are shipped domestically via Xpress Post with Canada Post to ensure safe, discreet delivery.
Most orders ship the same business day. Orders within the Greater Toronto Area (GTA) typically arrive within 1–2 business days, while more rural or remote areas can expect 3–5 business days. FlexDelivery and PO Boxes are supported. Please note these are average delivery times — delays may occasionally occur due to courier issues or remote locations.
Every peptide product sold on our site is lab-tested before it's listed. If a product hasn't been tested, we don't sell it.
Unless otherwise noted on the product page, all NexPept research compounds are supplied as lyophilized (freeze-dried) powder for laboratory research use. Physical form and net quantity are listed individually on each product page.