- ≥99% HPLC purity
- Lot-matched certificate of analysis
- Ships next business day, tracked
PT-141 Nasal Spray
Pre-mixed bremelanotide solution in a 15 mL metered nasal pump
- FormAqueous solution, 15 mL amber bottle with metered nasal pump
- Research areasIntranasal peptide delivery, mucosal absorption, formulation stability, melanocortin pharmacology
Supplied for laboratory research use only. Not for human or veterinary use, and not intended to diagnose, treat, cure or prevent any disease.
Overview
This is PT-141 (bremelanotide) supplied as a ready-mixed aqueous solution in a 15 mL amber bottle fitted with a metered nasal pump. The peptide itself is identical to the material in our lyophilized vials — a cyclic heptapeptide melanocortin agonist with MC3R and MC4R preference — but it is presented as a pre-dissolved intranasal format so that researchers evaluating mucosal delivery do not have to reconstitute and transfer powder themselves.
Specifications
Identity
- Peptide class
- Cyclic heptapeptide melanocortin (MC3R/MC4R) agonist
Supply & purity
- Form
- Aqueous solution, 15 mL amber bottle with metered nasal pump
- Available sizes
- 15 mL containing 10 mg; 15 mL containing 20 mg
Additional detail
- Nominal concentration
- ≈0.67 mg/mL (10 mg fill) or ≈1.33 mg/mL (20 mg fill)
- Active component
- PT-141 (bremelanotide), ≥99% by HPLC
- CAS number (active)
- 189691-06-3
- Molecular formula (active)
- C50H68N14O10
- Molecular weight (active)
- 1025.16 g/mol
- Vehicle
- Aqueous, preserved for multi-draw handling; clear and colourless when fresh
- Purity documentation
- Lot-matched COA for the peptide used in the fill
- Research areas
- Intranasal peptide delivery, mucosal absorption, formulation stability, melanocortin pharmacology
- Storage
- 2–8 °C upright, protected from light; do not freeze the filled bottle
Questions about PT-141 Nasal Spray
How much PT-141 is in each bottle?
Both options are 15 mL. One is filled with 10 mg of PT-141 and the other with 20 mg, giving nominal solution strengths of roughly 0.67 mg/mL and 1.33 mg/mL. Actual delivered mass per actuation depends on the pump’s metered volume, which researchers should verify gravimetrically for their own records.
Do you provide a certificate of analysis?
Every bottle is traceable to a lot-matched COA covering the peptide used in the fill, including HPLC purity of ≥99% and mass-spectrometric identity confirmation. Quote the lot number printed on the label when requesting the document.
Why choose a nasal format over powder for research?
Pre-mixed solution removes reconstitution error, keeps concentration consistent across a study, and is the correct article when the research question is mucosal delivery itself — deposition, clearance, formulation stability or route comparison. For assay work where you set the concentration, the lyophilized vial is more flexible.
How should the bottle be stored, and how long does it last?
Store upright at 2–8 °C away from light, and do not freeze. Solutions degrade faster than lyophilized powder, so define an in-use period for your protocol and verify concentration analytically if the study runs long. Discard if the liquid becomes cloudy, discoloured or shows particulates.
Can this be used as a needle-free alternative for personal use?
No. Despite the familiar packaging this is a research chemical, not a medicine or consumer product. It is supplied for laboratory investigation only and is not intended, labelled or approved for administration to humans or animals.
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