Research use only ✓ COA Melanotan II
Neuropeptides 4.6

Melanotan II

A cyclic lactam heptapeptide analogue of alpha-melanocyte-stimulating hormone, acting at the melanocortin receptors.


$60.00
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Verified test results

Every batch, independently verified.

Each batch is analyzed by an independent third-party laboratory before it ships. This is the released report for the size selected above, exactly as the lab issued it.

Certificate of analysis

99.44%

Purity by HPLC

Lot
20260614
Tested
Jul 1, 2026
Labeled
10mg
Measured
10.22mg
4× tested

Full QC panel

1 passed · 3 reported

Identity

Melanotan IIReported

Quantity

spec 10 mg

10.22 mgReported

Purity

spec >98%

99.441%Reported

Endotoxin

limit 35.00

3.10 EU/mgPass
Technical specification

What is on file, and how it is handled

Every figure below is transcribed from the paperwork for this compound.

What is Melanotan II?

Three changes separate it from native alpha-MSH: norleucine replaces methionine, D-phenylalanine replaces the L form, and a lactam bridge between the lysine side-chain amine and an aspartate carboxyl closes the molecule into a ring. Cyclising a linear peptide this way is a standard route to resisting enzymatic breakdown, and it is why this analogue is far more stable than the hormone it derives from.

Material

Compound
Melanotan II
Form
Lyophilised powder

Verification

Identity
Confirmed on the certificate of analysis
Purity
See certificate
Batch
See certificate
Documentation
Per-batch certificate of analysis

Handling

Storage
Store at −20 °C, protected from light
Intended use
In-vitro laboratory research only

ReviewsWhat researchers say