MSH Analogues

Melanotan-I 10mg laboratory research peptide

CAS75921-69-6

FormulaC78H111N21O19

Mol. weight1646.85 Da

Quantity10mg/vial

Purity99.2% HPLC

IdentityConfirmed

ReportBy email on request

StockIn stock

Melanotan-I 10mg

Name: Melanotan-I 10mg
Brand: Pepta Labs
SKU: melanotan-1
Price: 25.89 USD
Availability: InStock

Melanotan I, MT-I, Afamelanotide (INN), CUV1647 · CAS 75921-69-6

Melanotan-I 10mg is a sealed glass vial holding a supplier-stated 10 mg of Melanotan-I (Melanotan 1, MT-I) as lyophilized powder, sold by Pepta Labs as a laboratory reference material. 10 mg is the only Melanotan-I size Pepta Labs lists. The independent HPLC purity and mass-spectrometry identity report for the sourced production run is sent by email on request, before you order if you want it: request it on this page or email support@peptalabs.com.

Melanotan-I 10mg: $25.89 per vial ($2.59 per mg of the supplier-stated 10 mg). Ships to US addresses only. Melanotan-I 10mg (Afamelanotide) is a lyophilized research peptide supplied as 10mg of dry powder per sealed vial. CAS 75921-69-6; molecular formula C78H111N21O19; molecular weight 1646.85 Da. Purity is reported as 99.2% by reversed-phase HPLC and identity is confirmed by mass spectrometry; the analytical report is available by email. Supplied for laboratory research use only.

99.2% pure Identity confirmed

$25.89

$2.59 per mg

Free US shipping · Most orders ship the next business day

Pack size and price

Quantity

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Code FALL25: 25% off at checkout.

Free US shipping, no minimum

Most orders ship the next business day as dry powder at ambient temperature. Unopened products in original sealed condition may be returned within 30 days of delivery with return authorization.

Report by email before you order

Independent HPLC purity and MS identity report on request. Pepta Labs does not test in-house.

Payment methods

Pepta Labs accepts Cash App, Venmo, Zelle, Bitcoin and Ethereum (5% crypto discount). Payment instructions are emailed as soon as you place your order.

Research use only

Not for human or animal use. Certified at checkout from a registered account.

Specifications

Melanotan-I 10mg at a glance

Melanotan-I 10mg is supplied as lyophilized powder in a sealed glass vial for laboratory research only. It is not for human or animal use, consumption, administration, diagnosis or treatment.

Full name: Afamelanotide
Quantity: 10mg/vial
CAS number: 75921-69-6
Molecular formula: C78H111N21O19
Molecular weight: 1646.85 Da
Sequence: Ac-Ser-Tyr-Ser-Nle-Glu-His-D-Phe-Arg-Trp-Gly-Lys-Pro-Val-NH2
Purity: 99.2% by HPLC
Identity: Confirmed by mass spectrometry
Physical form: Lyophilized (freeze-dried) powder, sealed glass vial
Report: Sent by email on request, before you order if you want to see it first.
Not claimed: Sterility, endotoxin or LAL, potency, pharmaceutical-grade, cGMP, contaminant-panel or vial fill-quantity testing
Category: MSH Analogues

Chemical identity

What Melanotan-I is

Melanotan-I (Melanotan I, MT-I; INN afamelanotide; research code CUV1647) is a synthetic linear 13-residue peptide amide, acetylated at the N-terminus. Its sequence is Ac-Ser-Tyr-Ser-Nle-Glu-His-D-Phe-Arg-Trp-Gly-Lys-Pro-Val-NH2, i.e. the 13-residue alpha-MSH sequence with norleucine at position 4 and D-phenylalanine at position 7, hence the alias [Nle4, D-Phe7]-alpha-MSH (NDP-alpha-MSH). It contains one D-amino acid and no cysteine, so there is no disulfide or lactam ring. Molecular formula C78H111N21O19, molecular weight 1646.85 Da (average), CAS 75921-69-6, UNII QW68W3J66U, PubChem CID 16197727. Pepta Labs lists Melanotan-I as a lyophilized powder in sealed glass vials at 10 mg per vial, with reported RP-HPLC purity and identity confirmed by mass spectrometry; the salt form is typically acetate or trifluoroacetate. Store sealed vials at 2-8 C on arrival or -20 C for long-term storage, away from light and moisture. Offered strictly for laboratory research use.

Also known as: Melanotan I, MT-I, Afamelanotide (INN), CUV1647
Structural class: synthetic linear 13-residue peptide amide, N-acetylated (alpha-MSH analogue with Nle4 and D-Phe7)
Residues: 13 amino acids
Salt form: typically supplied as acetate or trifluoroacetate salt
PubChem CID: 16197727
UNII: QW68W3J66U

Handling

Storage, form and restrictions

Shipping: Ships at ambient temperature with no cold pack and no insulated packaging. No cold chain is required for dry powder.
Storage: Refrigerate at 2–8°C on arrival, or hold at −20°C for long-term storage. Keep sealed vials away from light and moisture.
Research use only: Offered solely for laboratory research. Not for human or animal use, consumption, administration, diagnosis or treatment. See the research use policy.

Documentation

Before you order

What are research peptides? All MSH Analogues compounds How to Read a Peptide COA HPLC and Mass Spectrometry Testing and Documentation Research Use Policy

Questions

Melanotan-I 10mg — common questions

What sizes of Melanotan-I does Pepta Labs sell?

One: Melanotan-I 10mg, a single sealed vial holding a supplier-stated 10 mg of lyophilized powder. There is no smaller or larger Melanotan-I vial in the catalog; larger quantities are ordered as more than one 10 mg vial of this same listing.

What is in a Melanotan-I 10mg vial as supplied?

A supplier-stated 10 mg of Melanotan-I as dry, freeze-dried (lyophilized) powder in a sealed glass vial. The label identifies the compound, the quantity and the research-use designation and carries no lot or batch number. Vial fill quantity is not independently tested and net peptide content is not reported per listing, so 10 mg is the nominal powder quantity.

Is Melanotan-I 10mg an acetate or TFA salt?

Melanotan-I is typically supplied as an acetate or trifluoroacetate (TFA) salt, and this listing does not state a single counter-ion. The formula C78H111N21O19 and the 1646.85 Da molecular weight shown on this page describe the peptide without any counter-ion. The Learn guide on TFA vs acetate salt forms and net peptide content explains how the counter-ion is read on an analytical report.

Is Melanotan-I 10mg lab tested, and how do I get the certificate of analysis (COA)?

Request it on this page or email support@peptalabs.com with the compound name and size, and the report is sent by email, before you order if you want it. It is an independent third-party report on a sampled production run from the source: purity by RP-HPLC, reported as area-%, and identity by mass spectrometry. It is not a lot-specific certificate, since the vials carry no lot number, and Pepta Labs does not test in-house.

Where can I buy Melanotan-I 10mg vials in the USA?

Pepta Labs is a US storefront: Melanotan-I 10mg is ordered on this page as one or more sealed 10 mg vials and ships free within the US, for laboratory research use only. The certificate of analysis (HPLC purity and mass-spectrometry identity for the sourced production run) can be requested on this page or by email to support@peptalabs.com before you order.

How should sealed Melanotan-I vials be stored?

As sealed dry powder: refrigerate at 2-8 C on arrival, or hold at -20 C for long-term storage, away from light and moisture. The vial ships at ambient temperature with no cold pack, since dry powder needs no cold chain. The Learn guide on storing lyophilized research peptides covers dry-powder storage in more detail.

What does Melanotan-I 10mg cost?

Melanotan-I 10mg starts at $25.89 per vial. 3-vial packs are 7% off and 5-vial packs are 14% off. US shipping is free with no minimum.

What payment methods are accepted?

Pepta Labs accepts Cash App, Venmo, Zelle, Bitcoin and Ethereum (5% crypto discount). Payment instructions are emailed as soon as you place your order.

Is this for human or animal use?

No. Melanotan-I 10mg is offered solely for laboratory research and is not for human or animal use, consumption, administration, diagnosis or treatment. Buyers certify this at checkout.

Is Melanotan-I the same as afamelanotide?

Yes. Afamelanotide is the INN for Melanotan-I, the linear 13-residue amide Ac-Ser-Tyr-Ser-Nle-Glu-His-D-Phe-Arg-Trp-Gly-Lys-Pro-Val-NH2 (C78H111N21O19, 1646.85 Da, CAS 75921-69-6).

What is the structural difference between Melanotan-I and Melanotan-II?

Melanotan-I is a linear 13-residue peptide amide (1646.85 Da, CAS 75921-69-6). Melanotan-II is a cyclic heptapeptide amide, Ac-Nle-cyclo[Asp-His-D-Phe-Arg-Trp-Lys]-NH2, closed by a side-chain lactam (C50H69N15O9, 1024.18 Da, CAS 121062-08-6). They are different molecules with different formulas and CAS numbers.

What do Nle4 and D-Phe7 mean in the alias [Nle4, D-Phe7]-alpha-MSH?

They indicate that, relative to the 13-residue alpha-MSH sequence, methionine at position 4 is replaced by norleucine (Nle) and L-phenylalanine at position 7 is replaced by its D-enantiomer. The substitutions are reflected in the formula C78H111N21O19, which contains no sulfur.

All MSH Analogues compounds →