Research use only
PT-141 (Bremelanotide)
PT-141 (Bremelanotide) price and available sizes below.
Third-party COA published · Ships same day
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Orders ship via UPS 2nd Day Air or UPS Overnight, in discreet packaging. Orders placed before 3 PM ET Monday–Friday (1 PM ET Saturday) go out the same day; nothing ships on Sundays.
- Preparation form
- Lyophilized powder
- Storage
- Sealed vial, protected from light
- Analytical purity
- >99%
- Intended use
- In vitro research only
PT-141| 10mg
For In Vitro Research Use Only – Not for Human or Veterinary Application
Specifications:
- Quantity: 10 mg
- Form: Lyophilized Powder
- Purity: >99% (HPLC Verified)
Intended Use:
This compound is intended for in vitro research only by qualified professionals. It is not for human or veterinary use, and must not be used in food, drugs, diagnostics, or cosmetics.
Disclaimer:
All use must follow institutional and regulatory guidelines. All buyers must be authorized research personnel or institutions.
Terms of Sale:
By purchasing from HEEZ Research, the buyer affirms they are a qualified researcher or institution conducting lawful scientific research. All sales are final. The purchaser assumes full responsibility for handling, use, and regulatory compliance. HEEZ Research and its affiliates are not liable for any misuse or mishandling of this material.
Supplied as a lyophilized powder.
Over 99% pure peptides
Every peptide is analysed by an independent laboratory, and the results are recorded on a certificate of analysis for that batch.
Shipped from the USA
Stocked, handled and fulfilled domestically. Orders placed before 3 PM ET go out the same day.
You can buy PT-141 from HEEZ Research, which stocks it in a single 10 mg lyophilized vial and ships from the USA. Everything HEEZ supplies is for in vitro laboratory research — not for human or veterinary use.
PT-141, also catalogued as bremelanotide, is a cyclic heptapeptide characterized against melanocortin receptors. Structurally it is a metabolite of Melanotan II, which is why the two appear in the same molecular family.
PT-141 arises as a metabolite of Melanotan II and shares its cyclic heptapeptide architecture, differing at the terminus. Both trace back to α-MSH as the parent sequence.
Yes — PT-141 peptide is for sale online at HEEZ Research. It is independently tested by an accredited third-party laboratory using HPLC for purity and mass spectrometry for identity. Every peptide we supply is over 99% pure. Certificates of Analysis are published on the product page as testing is completed — review the report before you order. A certificate records the identity, purity and quantity measured for the material supplied, so you can confirm what you received matches what was ordered.
Sealed lyophilized PT-141 vials are stable at ambient temperature in transit and ship without cold packaging. On arrival, store the sealed vial per the storage conditions on its certificate of analysis.
PT-141 is available to buy for research from HEEZ Research as a research-use-only compound supplied to qualified laboratories and independent researchers. Checkout requires an institutional email matching your stated organization, and everything we supply is for in vitro laboratory research — not for human or veterinary use.
Common
questions
Purity verification, documentation, and how orders reach your laboratory.
About PT-141
What is PT-141 peptide?
PT-141 peptide (bremelanotide) is a synthetic cyclic heptapeptide, Ac-Nle-cyclo[Asp-His-D-Phe-Arg-Trp-Lys]-OH, supplied by HEEZ Research as a lyophilized powder for in vitro laboratory use. It differs from its parent cyclic analogue by a free C-terminal carboxylic acid in place of the amide.
How does PT-141 work?
In vitro, PT-141 is characterized as an agonist at the MC4R family with additional MC1R activity. The C-terminal change shifts both its mass and its receptor preference, which is why it is used in melanocortin selectivity assays.
How HEEZ tests PT-141
Solid-phase synthesis, cyclization, reversed-phase purification, lyophilization. Independent analysis by HPLC for purity and mass spectrometry for identity; certificate at /coa/pt-141-coa.webp.
PT-141 for sale: sizes and format
PT-141 is for sale from HEEZ Research in 10 mg sealed glass vials of lyophilized powder. Sealed lyophilized vials are stable at ambient temperature in transit and ship at ambient temperature; same-day dispatch before 3 PM ET via UPS from the USA.
Research use only
PT-141 from HEEZ Research is supplied strictly for in vitro laboratory research by qualified researchers and organizations. It is not for human or veterinary use and is not a drug, food, supplement or cosmetic. Checkout requires an institutional email matching the stated organization, and purchasers must be 21 or older. All sales are final.
PT-141 specifications
- Purity
- >99% by HPLC for purity and mass spectrometry for identity
- CAS number
- 189691-06-3
- Molecular formula
- C50H68N14O10
- Molecular weight
- 1025.2 Da
- Amino acid count
- 7
- Structure
- Cyclic
- Synonyms
- bremelanotide
- Physical form
- White lyophilized powder
Mass-spectrometry identity confirmation on every lot.
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View entire catalogResearcher reviews
The PT-141 order was handled professionally from start to finish. Clear purity details, fast shipping, good packaging, and reliable support.
HEEZ did a nice job with the PT-141 presentation. Clear quality information, quick shipping, and solid packaging made a good impression.
The PT-141 product page gave me the quality details I wanted to see. The order was shipped quickly and packaged carefully.
Good experience with PT-141. I liked the emphasis on purity and consistency, and the packaging was clean and secure when it arrived.
PT-141 was presented clearly, and I appreciated the purity information. Shipping was fast, the packaging was secure, and HEEZ support was consistent.
I was looking for PT-141 with clear quality standards, and the product information delivered. The packaging was excellent and support was responsive.
PT-141 is exactly what I was looking for. I liked the clear focus on stated purity and consistency for research material.
Very impressed with the presentation of PT-141. The stated purity information and professional packaging stood out to me.
The stated purity standards for PT-141 were a big reason it caught my attention. Fast fulfillment, careful packaging, and responsive support were all positives.
I specifically chose PT-141 because the purity information was easy to find. Fast shipping and careful packaging were also a plus.
Really like the way HEEZ presents PT-141. The emphasis on purity, consistency, and research-use positioning feels professional.
The PT-141 arrived in good condition with secure packaging. Shipping was fast, and the product information was clear.
Terms of sale
Note: our products are not intended to treat, prevent, mitigate or cure any disease or medical condition, and are supplied for laboratory research purposes only. Purchasers must be at least 21 years of age and qualified to handle research materials.