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Melanotan II 10mg — Research Peptide

Melanotan II at a glance

Peptide.Express Melanotan II 10mg (CAS 121062-08-6) is $50, ≥99% pure by HPLC, with a molecular weight of 1024.2 Da and molecular formula C50H69N15O9, third-party tested with a lot-matched Certificate of Analysis you can verify before purchase. Ships same day on US orders placed before 2 PM EST, free over $150. For in-vitro laboratory research use only.

Melanotan II — research-grade lyophilized peptide vial from Peptide.Express, ≥99% HPLC purity
≥99% PurityUS SynthesizedIn Stock

For laboratory research use only. Not for human or veterinary use.

Research-Grade Compound

Melanotan 2 (also written Melanotan II, or MT-2) is a synthetic cyclic heptapeptide analog of α-melanocyte-stimulating hormone that acts as a non-selective agonist at four of the five melanocortin receptors: MC1R, MC3R, MC4R and MC5R. Molecular formula C50H69N15O9, molecular weight 1,024.2 Da, CAS 121062-08-6. Structure: Ac-Nle-cyclo[Asp-His-D-Phe-Arg-Trp-Lys]-NH2.

Purity standard: Melanotan II is sourced to ≥99% by HPLC — sourcing spec.

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10mg · $50.00/vial

$50.00$60.00USD / Unit
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Certificate of Analysis

Showing CoA for 10mg.

View CoAVerify with testing laboratory
HPLC VerifiedIdentity & purity
CoA Every OrderLot-matched
Ships Same DayBefore 2 PM EST
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Showing CoA for 10mg
Certificate Details
Purity≥99%
Methodology
HPLCLC-MS/MS
CAS Number121062-08-6
Molecular FormulaC50H69N15O9
Molecular Weight1024.2 g/mol
SequenceAc-Nle-cyclo[Asp-His-D-Phe-Arg-Trp-Lys]-NH2 (cyclic heptapeptide)
Verify Results with Testing Laboratory

Issued by an independent third-party laboratory; Peptide.Express does not test in-house. Results are reproduced as-is and confirm compound identity, purity, and the analytical methods used. For questions about specific results, contact support@peptide.express.

Safety Data Sheet (SDS)
≥99% by HPLCLC-MS/MS VerifiedCoA Every BatchIn-Vitro Research Use Only

Melanotan II Specifications

Identity, purity and storage specifications for Melanotan II.
CompoundMelanotan II (MT-II)
CAS121062-08-6
Molecular formulaC50H69N15O9
Molecular weight1,024.2 Da
SequenceAc-Nle-cyclo[Asp-His-D-Phe-Arg-Trp-Lys]-NH2
Purity≥99% by HPLC
FormLyophilized powder
Storage (lyophilized)-20°C, desiccated, protected from light
Storage (reconstituted)2–8°C, use within 14–28 days

Reconstituting Melanotan II: step-by-step peptide reconstitution guide. Concentration maths: peptide reconstitution calculator.

Buying Melanotan II — Frequently Asked Questions

What purity standard and testing does Peptide.Express apply to Melanotan II?

≥99% by reverse-phase HPLC with LC-MS/MS confirming the 1,024.2 Da mass, LAL endotoxin testing, and visual QC. Independent third-party testing, with a batch-specific Certificate of Analysis issued per lot. The mass value on that document is the field to check first given how close PT-141 sits.

Where is the Certificate of Analysis for Melanotan II?

On this page and in the Peptide.Express lab results library, indexed by batch number. Each CoA lists HPLC purity, LC-MS/MS mass confirmation, endotoxin result, testing laboratory and test date.

How should Melanotan II be stored before and after reconstitution?

Lyophilized: -20°C, desiccated and protected from light, stable for 24 months. Reconstituted: 2–8°C, used within 14–28 days. Do not freeze reconstituted solution.

Is Melanotan II legal to purchase for laboratory research?

Melanotan II is not a controlled substance in the United States and is available for laboratory research purchase. It has no approved human use anywhere, and Peptide.Express supplies it for in-vitro research only.

Is Melanotan II FDA approved?

No. Melanotan II is not approved by the FDA for any indication and has no marketing authorisation as a medicine.

Melanotan II research reference

Research Compounds Related to Melanotan II

PT-141The MC3R/MC4R-preferring analog differing only at the C-terminus.GHK-CuCopper tripeptide studied in dermal fibroblast rather than melanocyte models — a separate skin-research pathway.Kisspeptin-10GPR54 agonist for hypothalamic research where the target is the GnRH axis rather than melanocortin receptors.DSIPEndogenous nonapeptide studied in CNS and neuroendocrine models.

All products are sold for in-vitro laboratory research use only. Not intended for human consumption, clinical use, or veterinary use. Peptide.Express makes no medical claims. Consult the published literature for research application guidance.

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