Factory-direct peptide manufacturerResearch use only · B2B buyersRFQ reply within 4 business hours

SeqLine Bio · Catalog · Melanotan II

Cyclic heptapeptide · research use only

Melanotan II: samples, bulk and private label.

A synthetic cyclic heptapeptide, supplied lyophilized in 10 mg vials. Sample orders from 1 kit, with HPLC purity and MS identity on each lot COA.

Send a full RFQ
Melanotan II 10 mg lyophilized vial
Lot MT2-10 HPLC per lot COA MS confirmed 10 mg

Photo of the standard vial. Each lot carries its own lot number on the label and on its COA.

CompoundMelanotan II (MT-II)
StructureAc-Nle-c[Asp-His-D-Phe-Arg-Trp-Lys]-NH2 cyclic
Molecular weight≈ 1,024.2 g/mol
FormLyophilized powder, glass vial
HPLC puritySpecification NLT 98.0%; current lot 99.32%
Vial formats10 mg (custom on request)
DocumentationLot COA with HPLC purity and MS identity
Storage2–8 °C protected from light; long-term −20 °C

MOQ & lead time

Order typeMinimum orderDispatch window
Neutral-label sample from confirmed stock1 kit (10 vials)Within 3 business days after written payment confirmation.
Neutral-label sample requiring preparation1 kit (10 vials)3–7 business days after specification and payment confirmation.
Made-to-order production100 kits (1,000 vials)7–15 business days after specification and payment confirmation.
Private-label OEM100 kits (1,000 vials)7–15 business days after specification, payment and artwork approval.

Sample eligibility does not confirm current stock. Availability, lot and dispatch date are confirmed before payment. Kit price steps at 10, 100 and 1,000 kits do not change these minimums. Transit and customs are additional.

Research use only, B2B supply. Price steps at 10, 100 and 1,000 kits; RFQ reply within 4 business hours.

Send a full RFQ

Need to verify the supplier before ordering? Supplier Verification & Buyer Due Diligence →

What it is

What is Melanotan II?

Melanotan II (MT-II) is a synthetic cyclic peptide analog of alpha-melanocyte-stimulating hormone (α-MSH). Its structure is Ac-Nle-c[Asp-His-D-Phe-Arg-Trp-Lys]-NH2: an acetylated N-terminus, a cyclic core and a C-terminal amide. Molecular weight is about 1,024.2 g/mol. It is supplied as lyophilized powder in glass vials; store at 2–8 °C protected from light, or at −20 °C for long-term storage.

What you get

Vials, batch documents and lead times.

Vials

10 mg vials; custom fills on request. Neutral label by default; your own label, carton and insert from 100 kits (1,000 vials).

Batch documents

A COA for the lot you receive, with HPLC purity against our NLT 98.0% release specification and MS molecular-weight identity. Published lots are in the COA library; independent testing is welcome.

Order size and timing

Sample orders start at 1 kit (10 vials) for eligible products. Confirmed stock: within 3 business days after written payment confirmation; samples requiring preparation: 3–7 business days after specification and payment confirmation. Stock and the dispatch date are confirmed before payment. Production lots dispatch in 7–15 business days after specification and payment confirmation. Private label also requires artwork approval. Transit and customs are additional.

Request a quote Browse the catalog

FAQ

Questions buyers ask about Melanotan II.

Can I order other fill weights or bulk powder?

Yes. Other fill weights and raw Melanotan II powder are quoted on request. Include the target amount and specification in your RFQ.

Can I see the COA before I pay?

Yes. The quotation includes the COA for the lot you would receive, and published lots are listed in the public COA library. A confirmed quality issue is replaced or refunded under our quality policy.

Is Melanotan II sold for human use?

No. SeqLine Bio sells Melanotan II to B2B buyers for research use only and gives no dosing, medical or human-use advice.

Current Batch COA

Open the Melanotan-2 Certificate of Analysis.

One COA per published Melanotan-2 lot, listed by strength. Each shows the HPLC purity and MS molecular weight for that lot. You are welcome to have a vial tested independently; a confirmed out-of-specification result is replaced or refunded under the quality policy.

All Melanotan-2 batch records →

WhatsApp us