99.33%
Lot
COR--202608-346
Purity
99.55%
- Form
- Lyophilised powder
- Storage
- −20 °C, desiccated
- Stability
- 24 months
- CAS
- 189691-06-3
- Formula
- C50H68N14O10
- Molecular weight
- 1025.16 g/mol
- Solubility
- Bacteriostatic water or 0.9% NaCl, ≥2 mg/mL
PT-141
Bremelanotide · MC4R-selective analogue
£52
Vial massPT141-10-COR
1
106 vials in stock · dispatched within 24 h
The free-acid metabolite of Melanotan II, differing by a single terminal modification that substantially alters receptor selectivity — a textbook SAR pairing.
MC4R selectivityStructure–activity relationships
Supplied for laboratory research use only. Not for human or veterinary use, consumption, or clinical application.
Analysis
Certificate of analysis
UPLC-MS chromatogramPeak Chromatography
Retention time (min)λ 214 nm
Purity99.55%
Specification ≥ 98.0%
- Lot
- COR--202608-346
- Released
- 2026-08-15
- Mass expected
- 1025.16 Da
- Mass found
- 1025.16 Da
- Water (KF)
- 2.81%
- Endotoxin
- 0.142 EU/mg
- Appearance
- White lyophilisate
Primary structure
8 residues
Hover a residue for detail
- Formula
- C50H68N14O10
- Molecular weight
- 1025.16 g/mol
Interactive
Reconstitution
Vial mass
mL
mcg
Syringe
- Draw to
- 5.0 units
- Volume
- 0.050 mL
- Concentration
- 5.00 mg/mL
- Draws per vial
- 40
Arithmetic for PT-141 at the values you entered. Not a protocol and not a dose recommendation. Research use only.
Handling
- On arrival
- Transfer to −20 °C within two hours. Vials ship on phase-change packs rated for 72 hours.
- Reconstitution
- Bacteriostatic water or 0.9% NaCl, ≥2 mg/mL
- After reconstitution
- 2–8 °C, use within 28 days. Aliquot to avoid freeze-thaw cycling.
- Shelf life
- 24 months lyophilised, desiccated and protected from light.