Product rendering, not a photograph of the shipped container.
- ≥ 99% HPLC
- Made or sourced in the USA
- COA with every lot
Peptides
Melanotan I
These products are sold exclusively for laboratory research use only. They are not intended for human or animal consumption, clinical use, or veterinary applications, and are not intended to diagnose, treat, cure, or prevent any disease.
Any quantity you like. Packs of 100, 250, 1,000 are one click and set the unit price; above 1,000 we quote the order.
Stock up & save
Wholesale orderOver 1,000 units or institutional terms — request a quotation. Invoiced; ACH bank transfer or cryptocurrency.Order total
$23.99 USD
1 × $23.99
0.01 g total
Ships same or next business day when ordered by 2 PM Eastern
Lot-specific certificate
Every container carries a lot number and a QR code that opens the certificate of analysis for that lot.
- Payment
- Orders under $1,500 are paid by Cash App, Zelle, ACH bank transfer or cryptocurrency, or by card where that option is offered at checkout; orders of $1,500 and over are paid by Cash App, Zelle, ACH bank transfer or cryptocurrency, but not by card. An order paid by transfer is held until the payment arrives and ships as soon as it does.
- In the box
- Packing list, lot-specific COA and safety data sheet.
- Shipping
- Ships same or next business day when ordered by 2 PM Eastern. Three tracked services at checkout: standard $4.99 in 2–5 business days and free from $99.00, two-day $14.99 and free from $350.00, overnight $39.99. Those are domestic rates; shipping outside the United States is quoted before payment.
Compound information
Molecular profile
What is Melanotan I?
Melanotan I laboratory material. In-vitro research use only.
- Peptides
- Lyophilized
- ≥ 99% HPLC
- Type
- Peptides
- CAS number
- 75921-69-6
- Molecular formula
- C78H111N21O19
- Molecular weight
- 1646.85 g/mol
- Amino acids
- 13
- Sequence
- Ac-Ser-Tyr-Ser-Nle-Glu-His-D-Phe-Arg-Trp-Gly-Lys-Pro-Val-NH2
- Purity specification
- ≥ 99.0% by analytical HPLC
- Also listed as
- MT-1, MT-I, Afamelanotide
Storage requirements
Stability information
- Freeze for storage
- Solutions at 2–8 °C
- Protect from light
Lyophilized (powder)
Long-term storage
In solution
Short-term, once dissolved
Light protection
Store away from light
Sealed lyophilized material is stable at ambient temperature for the duration of normal transit. Solutions are held at 2–8 °C and should not be repeatedly frozen and thawed.
- Appearance
- White to off-white lyophilized cake.
- Presentation
- Lyophilized under vacuum into a 3 mL clear vial, argon headspace, 20 mm crimp seal.
- Counter-ion
- Counter-ion content is stated on the certificate for each lot.
Handle with appropriate personal protective equipment in accordance with the safety data sheet. Solubility and storage data describe the material as supplied.
Certificate of analysis
The report below is for lot LDA22161212, a 10 mg fill, transcribed from the certificate issued for it. The results are the laboratory's; the assays run are listed exactly as reported.
Tested by Lingda Laboratory
HPLC-UV/VIS · ICP-MS · LAL · Culture
Certificate of analysis
99.68%
Purity by HPLC
- Lot
- LDA22161212
- Tested
- Sep 4, 2026
- Labeled
- 10 mg
- Measured
- 10.89 mg
- 10 assays
- Tested by Lingda Laboratory
Full QC panel
✓ 9 within specification · 1 reported
Chromatographic purity
HPLC-UV/VIS
>99.68% ± 0.18%✓ PassQuantity
HPLC-UV/VIS
10.89 mgReportedLead (Pb)
ICP-MS
0.35 ppm (≤10 ppm)✓ PassCadmium (Cd)
ICP-MS
0.26 ppm (≤10 ppm)✓ PassArsenic (As)
ICP-MS
0.29 ppm (≤10 ppm)✓ PassMercury (Hg)
ICP-MS
0.36 ppm (≤10 ppm)✓ PassEndotoxin
LAL
0.22 EU/mg (≤0.50 EU/mg)✓ PassBacteria
Culture
No growth✓ PassFungi
Culture
No growth✓ PassYeast
Culture
No growth✓ Pass
Documentation
Common questions
How is the certificate matched to the material?
Each container is labeled with a lot number. Entering it on the certificates page returns the release data measured for that lot: purity, identity, net peptide content, water, heavy metals, bioburden and endotoxin.
Is the fill weight the peptide content?
No. The fill weight includes residual water and counter-ion. Net peptide content and water content are reported separately on the certificate.
What if independent analysis disagrees with the certificate?
Submit the data. A retained sample of every lot is re-tested by the independent laboratory; if the lot is confirmed out of specification the order is refunded in full, the remainder of the lot is recalled and the cost of the independent analysis is reimbursed.
How are quantities above the catalog tiers handled?
Above 1000 units of one catalog number the order is quoted individually so that lead time and freight can be confirmed first.
What technical support is available?
Technical inquiries are limited to the material as supplied: purity, analytical method, identity, stability, solubility and storage. No information on use in any living organism is provided.
Melanotan I is supplied as a chemical reference material for in-vitro laboratory research only. It is not a drug or a supplement, it is not for human or veterinary use, and no statement on this page should be read as describing an effect in a living subject.
