MT-2 / Melanotan-2 Acetate 10mg
£27.00 per vial · Peptides · Research use only
About Melanotan-2 Acetate (MT-2) 10mg
Melanotan-2 Acetate (MT-2) 10mg is a synthetic cyclic peptide supplied in acetate form, supplied as lyophilised powder in a single vial for in-vitro laboratory research.
Product specifications
- Compound
- Melanotan-2 Acetate (MT-2)
- Declared content
- 10mg per vial
- Format
- Lyophilised powder
Batch documentation
The current published lot is IP-MT2-002. The batch record from Janoshik Analytical (CZ), dated 24 August 2026, lists reported purity of 99.887% (RP-HPLC) and measured content of 8.95 mg/vial.
View the certificate of analysis →
Intended use
For in-vitro laboratory research only. Not for human or veterinary use.
Technical notes and further reading
- CAS number
- 121062-08-6
- Molecular formula
- C50H69N15O9
- Molecular weight
- 1024.2 g/mol
- Sequence
- cyclo Ac-Nle-[Asp-His-D-Phe-Arg-Trp-Lys]-NH₂
Specification
| SKU | MT2 |
|---|---|
| Compound | MT-2 / Melanotan-2 Acetate |
| Price | £27.00 per vial |
| Format | 10mg per vial |
| Availability | In stock |
| CAS number | 121062-08-6 |
| Molecular formula | C50H69N15O9 |
| Molecular weight | 1024.2 g/mol |
| Sequence | cyclo Ac-Nle-[Asp-His-D-Phe-Arg-Trp-Lys]-NH₂ |
| Published batch / lot | IP-MT2-002 |
| Reported purity | 99.887% (RP-HPLC) |
| Measured content | 8.95 mg/vial |
| Identity status | LC-MS identity result not published |
| Tested by | Janoshik Analytical (CZ) |
| Report date | 2026-08-24 |
| Storage | Lyophilised: −20 °C, protect from light |
| Intended use | In-vitro laboratory research only |
What does the research on Melanotan-2 acetate investigate?
Melanotan-2 acetate is a cyclic ten-residue analogue, and both parts of that description carry analytical weight. The ring is closed by a lactam bridge between an aspartate and a lysine side chain, leaving no free ends for an enzyme to start from, and the ring has to be closed deliberately as a separate synthetic step. The acetate refers to the counter-ion: the material is supplied as the acetate salt, and that is what the name records. Salt form matters more than it is usually given credit for, because the mass of the salt includes the counter-ion, so a figure quoted as free base and a figure quoted as the acetate salt refer to different weights of the same substance. The chain also carries a tryptophan, so oxidation remains the change to watch for on storage. Nothing here describes a use, benefit, dose or effect in people.
Is Melanotan-2 acetate legal in the UK?
Melanotan-2 acetate is not a licensed medicine in the United Kingdom and is not listed in any schedule of the Misuse of Drugs Act 1971. Selling it as a research chemical is a lawful trade; what the law restricts is the purpose it is sold for, not the fact that it is sold.
Three pieces of legislation frame that distinction. The Human Medicines Regulations 2012 make it an offence to sell an unlicensed product for human use. The Psychoactive Substances Act 2016 prohibits supplying a psychoactive substance for human consumption, which is why a research-only basis is not a formality. The Misuse of Drugs Act 1971 would apply only if the compound were scheduled, and it is not. Each of these turns on the purpose of the supply, so the statements on this page are written plainly rather than tucked into small print.
In practice that means a supplier may lawfully sell to a researcher, research organisation or business buying for research, and the buyer confirms at checkout that they are 18 or over, buying in the course of research, and responsible for handling, storing and disposing of the material lawfully. Nothing here is legal advice for your own circumstances; if you need a position, take qualified advice.
Melanotan-2 is not a licensed medicine anywhere, and it is not supplied for human use. It is sold strictly as a research chemical for in-vitro laboratory work.
How are identity and quality assured?
Each released lot is tested and the result is published, rather than the material being described as high purity on the strength of a supplier's word. Purity is measured by reversed-phase HPLC at an independent laboratory. The laboratory used for every lot published so far is Janoshik Analytical, in the Czech Republic, and the result is stated alongside the measured content against label so the two can be read together.
The report carries the lot number printed on the vial, which is the part that matters. A certificate showing a result without a lot number cannot be tied to the vial in front of you, and a certificate for a different lot tells you nothing about yours. Matching the printed number on the label to the number on the report is a five second check and it is the whole point of publishing both.
Identity confirmation by mass spectrometry is a separate test and is ordered as an add-on, so the figures published here come from RP-HPLC purity testing unless a report says otherwise. Where no report is published for a listing yet, the documentation held for the lot being shipped can be requested before you order. We would rather send you what exists than let you assume a certificate is available when it is not.
Synthesis and supply
Peptide material is built by solid-phase synthesis, purified by preparative HPLC, then lyophilised. Lyophilisation freezes the solution and removes the solvent under vacuum, which is why the vial arrives holding a cake or powder rather than a liquid and why a solvent has to be added before the material can be worked with. Removing water also removes the main route by which a peptide degrades in storage, which is the reason the format is used.
Sequence length and modification are what make batches differ in difficulty. Every coupling step is an opportunity for a truncated or deleted by-product, and a heavily modified or long chain presents more of them, which is why the purity trace rather than the headline figure is what a certificate is read for. Vials are filled and labelled with the lot number, and the lot number is what the report and the verification lookup resolve against.
Two things must both go right for a batch to be correct: the ring must close, and the acetate content must match what the label states, and neither is established by a purity figure on its own.
External resources for researchers
These are the public reference sources we use when checking the identity of Melanotan-2 acetate, and the ones worth going to before relying on anything stated on a product page, including this one.
- PubChem — Compound records, computed properties, depositor-supplied identity data.
- CAS Common Chemistry — CAS Registry lookups where a registry number is known.
- ChEBI — Curated chemical ontology entries with cross-references.
- Europe PMC — Primary literature search by compound name, sequence or registry number.
- Certificate hub — Reports published for the lots released so far.
Frequently asked questions
Why does the product name include "acetate"?
Because the salt form is part of the material, not a detail of packaging. Acetate is the counterion specified for this listing, and it contributes mass that is not peptide. Where net peptide content is reported on the lot documentation, that is the figure to calculate from.
What does the lactam bridge do structurally?
It joins an aspartate side chain to a lysine side chain, closing the seven residues into a ring. A cyclised backbone is conformationally restricted rather than freely rotating, and it presents no free termini for exopeptidases to work from — both reasons why constrained cyclic analogues are common as tool ligands in receptor studies.
Where can I check current ordering options?
The product page shows the current price, availability and ordering options. Batch documentation is listed separately, and support can help with product specifications and the available analytical records.
Is MT-2 / Melanotan-2 Acetate supplied for human or veterinary use?
No. Every product on this site is supplied strictly for in-vitro laboratory research. MT-2 / Melanotan-2 Acetate is supplied as a lyophilised powder in a sealed vial and is not a medicine, supplement, food, cosmetic or veterinary product. It is not supplied for human or animal consumption, administration, or any in-vivo use, and no dose, route or human application is described or offered anywhere on this page. Buyers confirm they are 18 or over and purchasing in the course of research.
How is the purity figure measured, and what does it actually tell me?
Purity is measured by reversed-phase HPLC at an independent laboratory, and the result is published with the method conditions rather than as a bare percentage. The figure is the proportion of the UV-absorbing material in the chromatogram that elutes as the target peak. It describes the sample as analysed; it is not a statement about what the material is for. A high figure alongside a clean chromatogram is the useful combination, which is why the report is worth reading rather than the headline number alone.
What documentation comes with a batch?
Each released lot carries a number printed on the vial label and a report stating purity by RP-HPLC, measured content against label, and the testing laboratory. Reports published so far are listed on this page and collected on the certificate hub, and each carries a lot number that can be checked against the vial in front of you. Where a report is not yet published for a listing, ask before ordering and we will send the documentation that exists for the lot being shipped.
How should MT-2 / Melanotan-2 Acetate be stored?
In the form supplied, as a lyophilised powder, the material is stable kept cold, dry and dark. For powder, that means a freezer at around minus 20 degrees Celsius, desiccated, with the vial sealed and shielded from light, which is how it should stay until you are ready to work with it. Bringing a vial to room temperature before opening avoids condensation on the contents. Once in solution the material is less stable than the powder and should be kept cold and used within a short working window. Choosing a solvent and a storage regime for your own work is your call, not ours.
Do I need bacteriostatic water to prepare it?
A lyophilised powder needs a solvent added before it can be worked with. Bacteriostatic water, which is water with 0.9% benzyl alcohol, is the common choice because the preservative extends the working life of the solution once the vial has been opened, and we supply it in 3ml and 10ml vials. It is not the only option: where a method cannot tolerate benzyl alcohol, use the solvent the method specifies. The choice affects the sample, so it belongs to the researcher.
How and when is an order shipped?
Orders are dispatched from the United Kingdom. An order placed before 4pm on a working day is collected the same day; weekends and bank holidays roll forward to the next working day. Delivery is tracked, and shipping is free on UK orders over 30 pounds, with tracked 48 hour service at 3.65 pounds below that. Tracking is sent when the parcel is collected, so the first scan is usually visible the same evening.
What does it mean that the material is the acetate?
That the molecule is paired with acetate ions to balance its charge, as most peptides are when supplied as a salt. Acetate is a small counter-ion and the pairing is reversible in solution, but it contributes to the mass of the powder in the vial. A certificate quoting a peptide content as the free base and one quoting it as the acetate salt are describing slightly different amounts of material, so it is worth checking which convention a given figure uses.
Why is the ring significant?
Because it removes the ends that degradation processes normally work from and constrains the molecule into a fixed shape. It also means cyclisation is a step that can fail independently of the rest of the synthesis: material can have the right residue composition and still be linear, which shows up as a mass difference rather than as several peaks on a purity trace.
How is this different from Melanotan-1?
They are distinct molecules rather than two grades of one substance. Melanotan-1 is a linear thirteen-residue analogue of alpha-melanocyte-stimulating hormone; this is a cyclic ten-residue analogue with a different molecular weight and a different structural basis. Neither is a substitute for the other in an analytical or experimental sense, and the licensing position of the two also differs.
What is the main storage concern?
Oxidation at the tryptophan residue, which is the same liability that affects most of the aromatic peptides listed here. It adds sixteen daltons and shifts retention, appearing as a closely spaced second peak rather than obvious breakdown. Keep the vial cold, dry, dark and sealed, bring it to room temperature before opening to avoid condensation, and avoid repeated freeze-thaw cycles.
Documentation & batch verification
The current released lot is IP-MT2-002, tested 2026-08-24 by Janoshik Analytical (CZ): RP-HPLC purity 99.887% (RP-HPLC), measured content 8.95 mg/vial, identity Purity confirmed (RP-HPLC). The full report for this lot is published and can be checked online — verify this batch. See the full record for lot IP-MT2-002 or all published certificates of analysis.
Published batch records show the laboratory, report date, purity and measured content where reported. Check the certificate for the exact lot: an HPLC purity result does not establish LC-MS identity, sterility or suitability for human or animal use. Review the published batch record before ordering.
Request an invoice · Verify a batch
Research use only. Not for human or animal consumption.