Small-batch research peptidesThird-party tested for purityDispatched within 24 hoursEvery lot on the recordFree US shipping over $15010% off your first orderFor research use only
Small-batch research peptidesThird-party tested for purityDispatched within 24 hoursEvery lot on the recordFree US shipping over $15010% off your first orderFor research use only
Melanotan I
Also known as Afamelanotide · MT-1 · CAS 75921-69-6
α-MSH analog — A linear α-MSH analog studied for melanogenesis and photoprotection pathways in research.
Purity specification: 99%+Lyophilized powder
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Specifications
| CAS number | 75921-69-6 |
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| Molecular formula | C78H111N21O19 |
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| Molecular weight | 1646.9 g/mol |
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| Form | Lyophilized powder |
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Research use only. Not for human or veterinary use, consumption, diagnosis, treatment, or therapeutic purposes.
Documentation
Certificates of Analysis
Batch-specific, third-party lab certificates. Each COA is published here once its lot has been tested — preview the results, then open the full PDF.
No released lot-specific certificates are currently published for this compound. A certificate appears only after its batch clears release and the source PDF is available.
View the compound COA record →
Research context
Sources and references
How is Melanotan I related to afamelanotide research?
Melanotan I is a linear alpha-MSH analog associated with the afamelanotide research lineage. Clinical publications establish that lineage but do not verify or authorize use of Astral research material.
Clinical commentary
Luger TA, Böhm M. Journal of Investigative Dermatology (2015).
Provides clinical research context for an alpha-MSH analog without making a claim about Astral material.
PMID 25785940 · DOI 10.1038/jid.2015.16
Investigational-drug review
Minder EI. Expert Opinion on Investigational Drugs (2010).
Describes afamelanotide's research lineage and melanocortin mechanism.
PMID 21073357 · DOI 10.1517/13543784.2010.535515
Editorially curated and source-verified; not independently peer-reviewed by Astral. Last source check: 2026-07-21. How sources are selected.
Read the compound research page →