In stock · Ships within 1–2 business days by Canada Post (Express/Priority available at checkout)
About PT-141
PT-141, also known as bremelanotide, is a synthetic cyclic heptapeptide with the structure Ac-Nle-cyclo[Asp-His-D-Phe-Arg-Trp-Lys]-OH. It is structurally almost identical to Melanotan II, differing only by a free acid in place of an amide at the C-terminus.
Canada Research Labs supplies PT-141 as 10mg of lyophilized powder in a 3 mL glass vial, packed and shipped from Ontario.
See our PT-141 research overview.
Research background
PT-141 is a melanocortin receptor agonist studied mainly for its activity at the MC3R and MC4R subtypes, which are expressed in the central nervous system. Its development followed directly from research on Melanotan II, and the two are often compared in laboratory studies of how small structural changes affect melanocortin receptor selectivity.
Researchers use PT-141 as a reference compound in preclinical studies of central melanocortin signaling pathways. Because it is so close in structure to Melanotan II, confirming identity by mass spectrometry is especially important; the certificate for each lot reports this result.
What you receive
- 10mg PT-141 as a lyophilized powder
- 3 mL glass vial, sealed
- Shipped by tracked Canada Post from Ontario, within Canada only
Testing and documentation
Every lot is tested by an independent laboratory using HPLC for purity and mass spectrometry for identity. The certificate for the current lot is linked in the Product Information section above and published in our COA library, and our guide explains how to verify a COA.
Handling
Lyophilized peptides are generally reconstituted with bacteriostatic water, sold separately. Storage guidance is listed in the Product Information section and FAQ.
Research use only
PT-141 is supplied strictly as a reference material for in-vitro laboratory research by qualified professionals. It is not a drug, natural health product or cosmetic, and has not been authorized by Health Canada for any human or veterinary use.
Product Information
- Molecular Formula
- C50H68N14O10
- Molecular Weight
- 1025.18 Da
- Amount per vial
- 10mg
- Supplied as
- Lyophilized powder in a 3 mL glass vial
- Purity
- Lot 0226 · 99.951% HPLC · Freedom Diagnostics · View COA
- Sequence
- Ac-Nle-cyclo[Asp-His-D-Phe-Arg-Trp-Lys]-OH
Frequently asked questions
What is PT-141?
See our PT-141 research overview .
What does one vial contain?
10mg of PT-141 as a lyophilized powder, supplied for in-vitro laboratory research.
How is it tested?
Every lot is tested by an independent laboratory using HPLC for purity and mass spectrometry for identity. The certificate of analysis for the current lot is linked above and published in our COA library.
How should it be stored?
Store sealed lyophilized vials at -20°C, protected from light and moisture. Short-term storage at 2–8°C is acceptable.
How fast does it ship?
Orders ship from Ontario within 1–2 business days by Canada Post standard shipping with tracking, or by Express/Priority if you select it at checkout. Shipping is free on orders over $300 CAD. We ship within Canada only.
How do I pay?
Interac e-Transfer. Payment instructions appear on your order confirmation.
Health Canada Notice - Research Use Only
These products are for in vitro use only. They have not been evaluated or approved by Health Canada for human or veterinary use. Sold strictly as reference compounds for in-vitro laboratory research conducted by qualified professionals in a controlled research setting. Not a drug, dietary supplement, food, cosmetic, or medical device, and not intended for the diagnosis, treatment, prevention, or cure of any condition in humans or animals. Resale, redistribution, or any human or animal administration is strictly prohibited.
