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PT-141 10MG research peptide vial — myPEPT EU — Halloween 2026 light

What PT-141 is and its research context

PT-141, also known as bremelanotide, is a synthetic cyclic heptapeptide derived from the sequence of α-melanocyte-stimulating hormone (α-MSH). Structurally it is a cyclic lactam in which the peptide backbone is closed between aspartate and lysine residues, producing a constrained ring that resists enzymatic breakdown in research preparations.

PT-141 is studied in preclinical research as a non-selective agonist of the melanocortin receptors MC1R, MC3R, MC4R and MC5R, with the strongest binding reported at the centrally expressed MC3R and MC4R subtypes. Researchers use it as a reference compound in melanocortin-pathway studies, neuropeptide signalling assays and comparative receptor-binding work alongside Melanotan-II, another α-MSH analogue in the myPEPT catalogue. Published work has also compared PT-141 with its linear parent sequence to map how the cyclic lactam affects receptor selectivity and resistance to degradation. The literature lists a molecular weight of approximately 1,025 Da.

Specification and quality

  • Format: lyophilised PT-141 in 10 mg and 20 mg research vials.
  • Purity: ≥99%, verified per batch by HPLC and mass spectrometry.
  • Certificate of analysis: issued by an independent third-party laboratory for every batch and published on the lab results page, matched to the lot number on the vial.
  • Storage: keep sealed vials cool, dry and protected from light; refrigerate reconstituted solution.

Bacteriostatic water for reconstitution is sold separately, and the peptide reconstitution calculator converts the 10 mg or 20 mg vial mass and a chosen diluent volume into a concentration.

Ordering from myPEPT in Ireland and Europe

PT-141 ships within Europe, including Ireland, and every parcel is tracked. Customers in Ireland can pay by card, PayPal, Klarna or SEPA transfer; other European countries see their local payment options at checkout. Our support team answers questions about batches, certificates and order status before and after purchase.

PT-141 is sold strictly for laboratory research use only and is not for human consumption. myPEPT makes no medical claims and does not give legal advice; buyers confirm at checkout that they are purchasing for research purposes and are responsible for compliance with the rules that apply to them.

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HPLC + massespektrometri-verificeret
Hver batch testes af tredjepart.
24-timers EU-afsendelse
Køle-pakket fra Antwerpen-lager. Typisk 2–5 dages levering.
Diskret og sikker betaling
iDEAL, SEPA, kort og krypto. Ingen produktreferencer på fakturaen.
CoA på hver ordre
Certificate of Analysis matchet til netop dit batch, via e-mail.

Ofte stillede spørgsmål

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Hvor hurtigt leverer I, og hvilke fragtfirmaer bruger I?
Ordrer afgivet inden kl. 16:00 CET afsendes samme hverdag fra Holland med DPD eller PostNL. Levering i EU tager typisk 2–5 hverdage og er altid sporet.
Hvilke betalingsmetoder accepterer I?
Vi accepterer iDEAL, Bancontact, Klarna, SEPA-straksoverførsel og Visa/Mastercard. Alle betalinger håndteres af PCI-DSS-godkendte europæiske udbydere.
Hvordan verificerer I peptidernes renhed?
Hvert batch HPLC-testes til 99 % renhed eller højere af et uafhængigt tredjeparts-laboratorium, med identitet bekræftet ved massespektrometri. Det batch-specifikke CoA offentliggøres på hver produktside.
Er forskningspeptider lovlige at købe i Danmark og EU?
Ja, når de sælges og købes udelukkende til in vitro-laboratorieforskning. Peptider på my\PEPT.eu er ikke godkendt eller beregnet til human eller veterinær brug.
Hvordan opbevares forskningspeptider?
Lyofiliserede peptider holder op til 24 måneder ved −20 °C. Når de er rekonstitueret i bakteriostatisk vand, opbevares de ved 2–8 °C og bruges inden for 28 dage.
What is PT-141?
PT-141, or bremelanotide, is a synthetic cyclic heptapeptide derived from α-MSH. It is studied in preclinical research as a non-selective agonist of the melanocortin receptors, with the strongest binding at MC3R and MC4R. myPEPT supplies it as a lyophilised research peptide for laboratory use only.
Which PT-141 vial sizes does myPEPT offer?
PT-141 is available as lyophilised powder in 10 mg and 20 mg research vials. Both sizes are tested to the same ≥99% purity standard, and each vial carries a lot number that links to the certificate of analysis published on our lab results page.
How is PT-141 purity verified?
Every batch is analysed by an independent third-party laboratory using HPLC and mass spectrometry and must reach at least 99% purity. The certificate of analysis is published on our lab results page, and its lot number matches the lot number printed on your vial.
How should PT-141 be stored?
Keep sealed vials cool, dry and protected from light until the laboratory is ready to reconstitute them. After dissolving in bacteriostatic water, refrigerate the solution and use it within the window defined by your laboratory's procedures. Label the vial with the date and concentration.
Does PT-141 ship to Ireland?
Yes. PT-141 ships within Europe, including Ireland, with tracking on every parcel. Customers in Ireland can pay by card, PayPal, Klarna or SEPA transfer, and our support team answers questions about batches and certificates before and after purchase.
Is PT-141 sold for research use only?
No. PT-141 from myPEPT is sold strictly for laboratory research use only and is not for human consumption. We do not provide instructions for use in people, make no medical claims and do not give legal advice. Buyers are responsible for compliance with the rules that apply to them.
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For research use only. This product is intended exclusively for in-vitro research and laboratory applications. Not approved for human or animal consumption, medical treatment, or therapeutic use.