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PT-141 10 mg lyophilized research peptide vial, PRIMEGEN LABS front label. Buy PT-141 10 mg from PrimeGen Labs — 99.2% purity lyophilized PT-141 peptide for laboratory research, third party tested by HPLC and mass spectrometry, supplied in a sealed 10 mL borosilicate vial with a batch-matched certificate of analysis.
Bremelanotide, MC4R agonist
Select strength
MC4R-selective melanocortin analog studied in neuroendocrine models.
For laboratory research use only. Not for human or veterinary consumption.
Long-term
-20 °C, sealed, desiccated
In transit
Ambient stable up to 21 days
After reconstitution
2–8 °C, use within 21 days
Light exposure
Protect from direct light
Lot XX · HPLC + MS report issued by an independent laboratory. The released PDF is available on request.
PT-141, also written as bremelanotide, is a cyclic heptapeptide analog derived from Melanotan II by replacing the C-terminal amide with a carboxylate. That single change removes most pigmentary activity while retaining central melanocortin engagement.
Agonist with preference for melanocortin-4 and melanocortin-3 receptors in the central nervous system, coupling through Gs and cAMP. The absence of the C-terminal amide substantially lowers MC1R-mediated melanogenic signalling relative to its parent compound.
Listed fields describe where this sequence appears in published in vitro and preclinical literature. They are not indications, applications, or claims of effect.
Allow the vial to reach room temperature before opening to prevent condensation on the lyophilized cake. Add sterile or bacteriostatic water slowly down the inner wall of the vial, then let the powder dissolve without agitation; swirl gently if needed. Do not shake or vortex — shear forces denature peptide secondary structure and cause foaming that traps material on the stopper.
As a sealed lyophilized powder the material is stable for extended periods at -20 °C when kept desiccated and protected from light. Once in solution, stability shortens considerably: aqueous stocks are normally held at 2-8 °C for short term work or aliquoted and frozen for longer storage. Repeated freeze-thaw cycling is the most common cause of measurable potency loss.
Single sequence per vial, sealed under inert gas in USP Type I borosilicate glass with a butyl rubber stopper and crimped aluminium overseal. Each vial carries a printed PRIMEGEN LABS label with product name, strength, lot number, manufacture and retest dates, storage temperature and a QR code linking to the lot record. Vials ship in a rigid foam insert inside a protective mailer at ambient temperature.
Compare with similar compounds
| Compound | Strength | Category | Molecular weight | Availability | Price |
|---|---|---|---|---|---|
| PT-141This page | 10 mg | Specialty Research | 1025.2 g/mol | In stock | $32.00 |
| Melanotan II | 10 mg | Specialty Research | 1024.2 g/mol | In stock | $24.00 |
Pairs well with
Complementary compounds researchers run alongside PT-141 — never competing alternatives.
Complete your order
Laboratory consumables matched to 1 vial in your cart.
Bacteriostatic Water
30 mL
1 × 30 mL — one vial of diluent per 3 peptide vials
Sterile Syringes
10-pack · 1 mL
10-pack covers a standard order
Alcohol Prep Pads
100-pack
Septum decontamination before every draw
Vial Storage Case
25 slots
Keeps lots organised and light-protected
Researchers also viewed
Specialty Research
Strength
10 mg
Purity
99.1%
PT-141 · 10 mg
In stock