Peptidolabs

Plasma Concentration Studies

melanotan-II

MT-II

MT-2

Melanotan 2

A cyclic peptide analog of α-MSH that binds melanocortin receptors, studied for melanogenesis and related pathways in research settings. Premium Research Peptide.

99%+ Purity

Purity Tested

Research Use Only

Laboratory Use

Peptide Profile

Peptide Type

Certificate of Analysis

Third Party Tested by Freedom Diagnostics

99.83%
HPLC purity · meets spec
Labeled
10mg
Measured
10.48mg
Identity
Confirmed
Heavy metals
Not Detected
Sterility
No Growth
Endotoxin
< 0.05 EU/mL
Tested
Jul 30, 2026

Compound Information

Technical specifications

🧬 Molecular Profile
Melanotan II Structure

Cyclic Peptide

α-MSH Analog

CAS Number
121062-08-6
Molecular Formula
C50H69N15O9
Molecular Weight
1024.18 g/mol
Sequence
Ac-Nle-c[Asp-His-D-Phe-Arg-Trp-Lys]-NH2
Structure
Cyclic lactam
Receptor Binding
Melanocortin Receptor Affinity
MC1R
High affinity (pigmentation)
MC3R
Moderate (metabolism)
MC4R
High affinity (sexual function)
MC5R
Moderate (exocrine)

Storage

2-8°C (refrigerated)

Reconstituted stability

30 days refrigerated

melanotan-II
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