Research background
Melanotan II is a cyclic lactam-bridged analog of alpha-melanocyte-stimulating hormone, designed at the University of Arizona as a metabolically stable, non-selective melanocortin agonist.
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Melanotan II 10 mg lyophilized research peptide vial, PRIMEGEN LABS front label. Buy Melanotan II 10 mg from PrimeGen Labs — 99.1% purity lyophilized Melanotan II peptide for laboratory research, third party tested by HPLC and mass spectrometry, supplied in a sealed 10 mL borosilicate vial with a batch-matched certificate of analysis.
Specialty Research
Melanotan II
Cyclic melanocortin agonist
In stock
Select strength
Cyclic melanocortin receptor agonist used in pigmentation research.
$24.00
- Third-party tested
- Ambient-stable transit
- Lot traceable
- Batch-matched COA
- Tracked delivery
- Research use only
For laboratory research use only. Not for human or veterinary consumption.
Laboratory specifications
- Purity (RP-HPLC)
- 99.1%
- Molecular formula
- C50H69N15O9
- Molecular weight
- 1024.2 g/mol
- CAS number
- 121062-08-6
- Form
- Lyophilized powder
- Appearance
- White to off-white lyophilized powder or cake, free of visible particulates.
- Solubility
- Sterile or bacteriostatic water; DMSO for hydrophobic sequences
- Endotoxin
- < 0.25 EU/mg
- Fill weight
- 10 mg
- Storage temperature
- -20 °C sealed · 2–8 °C after reconstitution
- Shelf life
- 36 months at -20 °C from the manufacture date
- Reconstitution
- Add diluent slowly down the vial wall; do not shake or vortex
- Synthesis
- Solid-phase (SPPS)
- Identity
- ESI-MS confirmed
- Residual solvent
- < 0.5%
- Closure
- Crimped aluminium / butyl stopper
- Manufacturer
- PRIMEGEN LABS · PrimeGen Co.
Storage & handling
Long-term
-20 °C, sealed, desiccated
In transit
Ambient stable up to 21 days
After reconstitution
2–8 °C, use within 21 days
Light exposure
Protect from direct light
Certificate of analysis
Lot XX · HPLC + MS report issued by an independent laboratory. The released PDF is available on request.
- Lot number
- XX
- EXP
- XX/XXXX
- COA date
- On request
- Testing laboratory
- Independent ISO lab
- Purity
- 99.1%
- Testing method
- RP-HPLC + ESI-MS
- Batch status
- Released — report on request
A batch-matched digital certificate for lot XX is available on request.
Mechanism of action
Broad agonist across MC1R, MC3R, MC4R and MC5R. MC1R activation in melanocyte culture raises cAMP and drives tyrosinase transcription and eumelanin synthesis; the central MC3/MC4 activity accounts for its use in appetite and behavioural circuit research.
Areas of scientific investigation
- Melanogenesis and tyrosinase expression assays
- Non-selective melanocortin receptor pharmacology
- Lactam-bridge cyclisation chemistry
- Central feeding-circuit models
Listed fields describe where this sequence appears in published in vitro and preclinical literature. They are not indications, applications, or claims of effect.
Laboratory handling
Reconstitution
Allow the vial to reach room temperature before opening to prevent condensation on the lyophilized cake. Add sterile or bacteriostatic water slowly down the inner wall of the vial, then let the powder dissolve without agitation; swirl gently if needed. Do not shake or vortex — shear forces denature peptide secondary structure and cause foaming that traps material on the stopper.
Stability
As a sealed lyophilized powder the material is stable for extended periods at -20 °C when kept desiccated and protected from light. Once in solution, stability shortens considerably: aqueous stocks are normally held at 2-8 °C for short term work or aliquoted and frozen for longer storage. Repeated freeze-thaw cycling is the most common cause of measurable potency loss.
Packaging
Single sequence per vial, sealed under inert gas in USP Type I borosilicate glass with a butyl rubber stopper and crimped aluminium overseal. Each vial carries a printed PRIMEGEN LABS label with product name, strength, lot number, manufacture and retest dates, storage temperature and a QR code linking to the lot record. Vials ship in a rigid foam insert inside a protective mailer at ambient temperature.
Frequently asked questions
Compare with similar compounds
Melanotan II vs PT-141
| Compound | Strength | Category | Molecular weight | Availability | Price |
|---|---|---|---|---|---|
| Melanotan IIThis page | 10 mg | Specialty Research | 1024.2 g/mol | In stock | $24.00 |
| PT-141 | 10 mg | Specialty Research | 1025.2 g/mol | In stock | $32.00 |
Pairs well with
Complementary compounds researchers run alongside Melanotan II — never competing alternatives.
Complete your order
Laboratory consumables matched to 1 vial in your cart.
Bacteriostatic Water
30 mL
1 × 30 mL — one vial of diluent per 3 peptide vials
$16.00
Sterile Syringes
10-pack · 1 mL
10-pack covers a standard order
$13.00
Alcohol Prep Pads
100-pack
Septum decontamination before every draw
$9.00
Vial Storage Case
25 slots
Keeps lots organised and light-protected
$33.00
Research stacks
Stacks that include MELANOTAN-II
Skin & Hair Research Stack
GHK-Cu 50 mg · Melanotan II 10 mg
View stack
Researchers also viewed
Alternative compounds
PT-141
Specialty Research
Strength
10 mg
Purity
99.2%
- High purity
- Batch tested
- COA available
In stock$32.00View details