Verified
Great documentation
Clean product, no discoloration, correct fill. Certificate of analysis was in the box AND emailed. Very straightforward experience.
Oliver K.Manchester, UK · 30 Mar 2026
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Nasal Sprays
Nasal Sprays
In stockPT-141 Nasal Spray
10 mg · ≥99% purity
4.9
£39.99£49.99GBPSave 20%
£39.99 per vial · Tax calculated at checkout · Free tracked UK & EU shipping over £50
Bundle & saveVolume discount applied automatically
1
We accept
≥99% purity
3rd-party HPLC
CoA per batch
Fast UK shipping
Quality guarantee
Every batch is independently HPLC assayed. Certificate of Analysis available on request.
Every UK order includes — free
- ✓Batch certificate of analysis (HPLC)
- ✓Discreet, unbranded packaging
- ✓Tracked delivery — free on orders over £50
Full refund
if a batch is off-spec
Free reship
if lost or damaged in transit
Same-day dispatch
Mon–Fri, order before 12:00 UK
Research use only
for laboratory work
Analytical data
Specifications, documented.
Identity data cross-checked against PubChem; purity taken from the batch certificate of analysis.
CompoundPT-141
Also known asBremelanotide
Molecular formulaC₅₀H₆₈N₁₄O₁₀
Molecular weight1025.18 g/mol
CAS number189691-06-3
PubChem CID9941379
FormNasal spray solution, 15 ml bottle
Storage2–8 °C, protected from light
About this compound
PT-141
Melanocortin-analogue heptapeptide
First disclosed
2004
PT-141 is a cyclic heptapeptide and the active metabolite of Melanotan II, with a stronger preference for the MC4 receptor. It is widely used as a tool compound for probing central melanocortin signalling.
Preferential MC4R agonism is studied in vitro for melanocortin-4 receptor binding and signal transduction.
Research areas
MC4 receptor signallingNeuro-signalling modelsReceptor selectivity studies
Research literature
Research notice: supplied strictly as laboratory research material for in-vitro use. Not for human or veterinary use, and not a medicine, food or cosmetic. This page gives identification and quality information only — no usage instructions or medical advice.
Browse this research area
PT-141 Nasal Spray is a research-grade peptide compound, supplied by MyPeptides for laboratory research use only.
PT-141 Nasal Spray is a research-grade peptide compound. MyPeptides supplies it as a lyophilised 10 mg vial for in vitro laboratory research, HPLC assayed at ≥99% purity with a signed certificate of analysis on every batch.
Researchers reach for PT-141 Nasal Spray in nasal sprays research. It is offered strictly for laboratory investigation — no personal-use claims, no dosing guidance, and no framing as a medicine.
The point of buying research grade rather than generic material is documentation. Every PT-141 Nasal Spray order carries lot-specific HPLC and mass-spec data, so the compound in your protocol matches the compound named on the paperwork. HPLC assayed with a signed certificate of analysis on every batch.
PT-141 Nasal Spray — frequently asked questions
Straight answers on purity, handling, dispatch and research use.
What is PT-141 Nasal Spray?
PT-141 Nasal Spray is a research-grade peptide compound, supplied by MyPeptides as a lyophilised research vial for laboratory research use only.
What is PT-141 Nasal Spray used for in research?
In cited literature, PT-141 Nasal Spray is studied in nasal sprays research. It is not a medicine and is not intended for human or veterinary use.
What purity is MyPeptides PT-141 Nasal Spray?
Every batch is third-party HPLC assayed at ≥99% purity. A signed certificate of analysis is available on request after checkout.
How is PT-141 Nasal Spray reconstituted and stored?
Ships lyophilised in a sealed borosilicate vial. Store at −20 °C; reconstitute with bacteriostatic or sterile water immediately before in vitro use.
Do you ship PT-141 Nasal Spray to the UK and EU?
Yes — tracked Royal Mail and DPD dispatch across the UK and EU, with free shipping on orders over £50. Weekday orders placed before 12:00 UK time ship the same day.
Related research
PT-141 Nasal Spray reviews
Verified feedback from qualified researchers across the UK & EU.
5.0(6 reviews)
Swipe
Verified
Great documentation
Clean product, no discoloration, correct fill. Certificate of analysis was in the box AND emailed. Very straightforward experience.
Oliver K.Manchester, UK · 30 Mar 2026
Verified
Vials in perfect condition
Been using peptides for research for years and MyPeptides is now my go-to. Consistent quality, quick turnaround, real documentation.
Daniel B.Milan, IT · 6 Apr 2026
Trust these guys
Everything about this feels professional - from the site to the packaging to the paperwork. Purity assay matches what is on the label. Will keep ordering.
Lena P.Amsterdam, NL · 23 Jun 2026
Reference-grade quality
Documentation is what sold me. Independent CoA per batch, clean HPLC traces. Reconstitution behaved exactly as expected. Solid supplier for research use.
Anton V.Vienna, AT · 6 Apr 2026
Exactly as described
Shipping to mainland EU took 3 working days, tracked the whole way. Vials arrived intact, labels crisp, seals unbroken. Reordering next month.
Mia L.Stockholm, SE · 24 Mar 2026
Verified
Professional service end to end
The little details matter - proper cold-chain, tamper-evident seals, and a CoA that actually reads like a lab report and not a marketing sheet.
Sofia R.Madrid, ES · 19 Jun 2026
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