Research use only
PT-141
PT-141 price and available sizes below.
Third-party COA published · Ships same day
Ships every month · Cancel anytime · Subscription terms
Secure Checkout With
PT-141 in a Research Panel: $41.25/vial (reg $55.00)
Pick any 4 · 25% off · one-time
Orders ship via UPS 2nd Day Air or UPS Overnight. Orders placed before 2 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:
This compound has not been evaluated by the FDA. 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.
Over 99% pure peptides
Every peptide is analysed by an independent laboratory and documented on a certificate of analysis for that batch.
Shipped from the USA
Stocked, handled and fulfilled domestically. Orders placed before 2 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 is a cyclic heptapeptide characterized against melanocortin receptors. It is structurally related to Melanotan II, which is why the two appear in the same molecular family.
PT-141 is structurally related to 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 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.
Please refer to your facility's standard operating procedures.
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 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 identity (retention time against a reference standard), plus net content, heavy metals, sterility and endotoxin; certificate at /coa/pt-141-10mg-hz-1008-pt10-01-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 2 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; identity by HPLC retention time against a reference standard
- CAS number
- 189691-06-3
- Molecular formula
- C50H68N14O10
- Molecular mass
- 1025.2 Da
- Amino acid count
- 7
- Structure
- Cyclic
- Physical form
- White lyophilized powder
Identity confirmed by HPLC retention time on the current lot.
You may also need
View entire catalogResearcher Review Based on 12 publications in Google Scholar
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.