PT-141 10mg vial
PT-141 is a 10mg lyophilized vial research peptide, in stock and dispatched from the EU within 24 hours on working days.
- Content
- 10mg
- Purity
- 99%+
Number of vials
- Shipping from €10
- Tracked and express delivery are available at checkout
- Free shipping on orders over €200
- Dispatched within 24 hours on working days
- Delivery in 1 to 4 working days across the EU and Monaco
- Discreet packaging: plain outer box, no product names or branding on the outside. A neutral billing name on your card statement, no product names.
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What is PT-141?
Cyclic alpha-MSH analog studied through melanocortin MC3R and MC4R signalling.
PT-141 is a stabilised cyclic heptapeptide analog of alpha-melanocyte-stimulating hormone. Published pharmacology characterises it as a non-selective melanocortin receptor agonist with the studied activity attributed largely to MC3R and MC4R, receptors expressed predominantly in the central nervous system rather than peripheral tissue. This vial is supplied as a lyophilised powder, which is the format most laboratory protocols specify because the dry peptide is stable at -20°C and the researcher controls the final concentration. Reconstitute with bacteriostatic water down the inside wall of the vial, swirl rather than shake, and calculate concentration from the 10 mg vial mass using our reconstitution calculator. Each batch carries a reference that can be matched against the record on our lab results page. For research purposes only, not for human consumption.
Specifications
- Molecular Weight
- 1025.2 g/mol
- Sequence
- Ac-Nle-cyclo(-Asp-His-D-Phe-Arg-Trp-Lys)-OH
- Purity
- 99%+
- Physical Form
- Lyophilized powder
- Vial Size
- 10mg
- Storage
- -20°C
- Recommended Solvent
- Bacteriostatic water (0.9% benzyl alcohol)
- Reconstitution
- Add the solvent slowly along the inside wall of the vial and swirl gently; do not shake.
- Appearance
- White to off-white lyophilized powder
- Shelf Life
- 24 months unopened at -20°C
What is PT-141 studied for?
Studied in the context of
- PT-141 is a stabilised cyclic heptapeptide analog of alpha-melanocyte-stimulating hormone.
- Published pharmacology characterises it as a non-selective melanocortin receptor agonist with the studied activity attributed largely to MC3R and MC4R, receptors expressed predominantly in the central nervous system rather than peripheral tissue.
- This vial is supplied as a lyophilised powder, which is the format most laboratory protocols specify because the dry peptide is stable at -20°C and the researcher controls the final concentration.
- Reconstitute with bacteriostatic water down the inside wall of the vial, swirl rather than shake, and calculate concentration from the 10 mg vial mass using our reconstitution calculator.
How is PT-141 stored and handled?
Storage
Store lyophilized vials at -20°C, protected from light. Once reconstituted, refrigerate at 2-8°C and use within the recommended window.
Reconstitution
Use bacteriostatic water; add slowly down the inside wall of the vial. Swirl to dissolve, never shake. See the in-house peptide calculator for concentration (mg/ml) and syringe units (IU on a U-100 syringe).
For research use only
Not for human or veterinary consumption. Handle in accordance with your institution's laboratory safety protocols.
For research purposes only. Not for human consumption.
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Before you order
Read before you order
All research guides- How to Store and Handle Research PeptidesLyophilised research peptides are stored in the refrigerator at 2 to 8 °C, or frozen at -20 °C for longer storage, sealed and protected from light. After reconstitution with [bacteriostatic water](/product/bacteriostatic-water-10ml) the solution is kept refrigerated, never shaken, and never refrozen.5 min read
- How to Read a Peptide COA (Certificate of Analysis)A peptide certificate of analysis shows what an independent laboratory found in one specific batch: identity confirmed by mass spectrometry, purity measured by HPLC, and the measured quantity against the labelled amount. Read it by checking the identity result first, then the purity figure and the test date.6 min read
- How to reconstitute research peptidesWorkspace preparation, diluent selection, mixing technique and storage after reconstitution.9 min read
- Where to Buy Research Peptides in Europe: A 2026 Buyer's ChecklistThe safest way to buy research peptides in Europe is from a supplier that stocks in the EU, publishes an independent lab report for each batch, ships in discreet tracked packaging, accepts regulated payment methods and states clearly that the products are for research use only. Ordering inside the EU avoids customs handling entirely.7 min read
- What your vial should look likeA sealed research peptide vial normally holds a white to off-white lyophilized cake or powder under an intact stopper and crimp cap. Pre-filled pens and nasal spray kits arrive sealed, with their documented appearance on the product page. Appearance never proves identity or purity; the COA for the batch does.4 min read
1× PT-141
€59.95