Compound: Melanotan I
CAS Number: 75921-69-6
Molecular Formula: C78H111N21O19
Purity: 98.82% (HPLC-UV verified)
Third-Party Testing: Testides Analytical (independent lab, Toronto)
COA Download: View Full COA (PDF)
Report: DBAV-MELA1-10-052926
Lot Number: 5666
Source: Canadian manufactured
Shipping: Same-day from our BC facility
Melanotan 1 peptide Canada: a synthetic linear tridecapeptide analog of alpha-melanocyte stimulating hormone (alpha-MSH), also known as afamelanotide. Available from Maple Research Labs at 10mg per vial with greater than 99%+ HPLC-verified purity and batch-specific COA.
Product Specifications
- CAS Number: 75921-69-6
- Alternative Name: Afamelanotide, [Nle4, D-Phe7]-alpha-MSH
- Molecular Weight: 1646.85 g/mol
- Purity: >99%+ (HPLC verified)
- Form: Lyophilized powder
- Quantity: 10mg per vial
Melanotan 1 Peptide Canada Research Summary
Melanotan I (afamelanotide, NDP-alpha-MSH) is a synthetic linear analog of alpha-melanocyte stimulating hormone containing two key modifications: norleucine substitution at position 4 (replacing methionine) and D-phenylalanine substitution at position 7. These modifications were developed by the University of Arizona research group to create a superpotent alpha-MSH analog with enhanced metabolic stability. The melanotan 1 peptide Canada product retains the full 13-amino acid linear structure of alpha-MSH unlike the truncated cyclic structure of Melanotan II.
Melanotan I demonstrates preferential selectivity for the MC1R melanocortin receptor compared to the non-selective profile of Melanotan II. This MC1R selectivity makes it a more targeted research tool for melanocyte biology studies, though it retains measurable activity at other melanocortin receptor subtypes in binding assays.
Mechanism of Action Research
MT-I acts primarily through the MC1R receptor expressed on melanocytes. Receptor activation triggers adenylyl cyclase signaling, elevating intracellular cAMP, which activates protein kinase A (PKA) and subsequently the MITF (melanocyte-inducing transcription factor) pathway. This cascade leads to upregulation of tyrosinase and other enzymes involved in melanin biosynthesis in cell culture models.
The norleucine-4 modification eliminates the methionine residue susceptible to oxidation, while the D-phenylalanine-7 substitution enhances receptor binding affinity by constraining the peptide backbone in a conformation that favors MC1R interaction. Published binding studies have demonstrated 10-100 fold increased potency compared to native alpha-MSH at the MC1R.
Research comparing MT-I to MT-II has examined selectivity ratios across melanocortin receptor subtypes, providing insights into structure-activity relationships within the melanocortin peptide family. These comparative studies have been foundational in melanocortin receptor pharmacology research.
Preclinical Study Summary
MT-I has been studied in melanocyte biology, photoprotection research, and erythropoietic protoporphyria models. Published research has examined its effects on melanogenesis, UV-induced DNA damage, and melanocyte proliferation in various experimental systems.
All findings are from preclinical research. No therapeutic claims are made.
References
- Dorr RT, et al. Effects of a superpotent melanotropic peptide on melanogenesis. Peptides. 1988 (PubMed)
Melanotan 1 Peptide Canada Quality Assurance
Verified products of melanotan 1 peptide Canada from Maple Research Labs undergoes independent third-party HPLC analysis confirming purity exceeding 99%+. Each order includes a batch-specific COA with retention time data, purity percentage, and mass spectrometry confirmation. The norleucine-4 and D-phenylalanine-7 modifications are verified through sequence analysis on every production batch.
Storage and Handling
Store lyophilized at -20C. Reconstituted at 2-8C, use within 28 days. Protect from light.
Shipping
Ships same-day from our Canadian facility. Temperature-controlled packaging included.
Certificate of Analysis (COA)
| Testing Laboratory | Testides (testides.com) |
| Report Number | DBAV-MELA1-10-052926 |
| Lot Number | 5666 |
| Purity (HPLC-UV) | 98.82% |
| Content / Fill Accuracy | 9.94mg measured / 10.00mg expected (99.4%) |
| Date Tested | June 9, 2026 |
| Download COA | Download Full COA (PDF) |
For research purposes only. Not for human consumption. Not for diagnostic or therapeutic use.
Related Research Articles
- Melanotan I vs Melanotan II: Research Comparison
- Research Peptides vs Other Research Compounds
- Certificates of Analysis (COA) Documentation
- Browse All Research Peptides
Frequently Asked Questions
What is the CAS number for Melanotan 1?
The CAS registry number for Melanotan 1 (Afamelanotide) is 75921-69-6. It is a synthetic analog of alpha-MSH.
What purity does Melanotan 1 achieve?
Batch 5666 tested at 98.82% purity by independent HPLC at Testides Analytical.
How does Melanotan 1 differ from Melanotan 2 in research?
Melanotan 1 is a linear 13-amino acid peptide (vs. MT-2 which is a cyclic 7-amino acid peptide). MT-1 is more selective for the MC1R receptor, while MT-2 has broader melanocortin receptor activity in research models.
Related Research Peptides from Maple Research
Researchers may also be interested in Melanotan 2 10MG, and bacteriostatic water. All products are shipped same-day from Canada with third-party purity verification.
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