Research Use Only
Melanotan II
· Reviewed by Aydan Myers, Lead Chemist · Evidence tier B
Melanotan II (MT2) is a Research Use Only chemical-identity and literature reference on Costides, not for human or veterinary use. Published identity includes CAS 121062-08-6, formula C50H69N15O9, average MW 1024.2 Da, PubChem CID 92432. It is indexed as cyclic melanocortin receptor agonist peptide.
Synonyms and vendor codes indexed here include MT2, MT-II, MT-2. This page does not describe administration or dosing.
Key facts
| CAS Registry Number | 121062-08-6 |
|---|---|
| Molecular formula | C50H69N15O9 |
| Average molecular weight | 1024.2 Da |
| PubChem CID | 92432 |
| InChIKey | JDKLPDJLXHXHNV-MFVUMRCOSA-N |
| Page type | Research identity monograph |
| Intended use | Research Use Only (reference) |
| Synonyms | MT2, MT-II, MT-2 |
| Research notes | cyclic melanocortin receptor agonist peptide |
| Evidence tier | B |
| Last verified | 2026-08-21 |
Is Melanotan II for human use?
No. Melanotan II (MT2) pages on Costides are Research Use Only reference materials. They are not medical advice and do not describe administration or dosing.
What is the CAS number of Melanotan II?
The CAS number of Melanotan II (MT2) is 121062-08-6. Formula and molecular weight appear in the identity table when retrieved.
What is the molecular weight of Melanotan II?
The average molecular weight of Melanotan II (MT2) listed on Costides is 1024.2 Da.
Chemical identity table
| CAS Registry Number | 121062-08-6 |
|---|---|
| Molecular formula | C50H69N15O9 |
| Average molecular weight | 1024.2 Da |
| PubChem CID | 92432 |
| InChIKey | JDKLPDJLXHXHNV-MFVUMRCOSA-N |
| Synonyms | MT2, MT-II, MT-2 |
Frequently asked questions
- What is Melanotan II?
- Melanotan II (MT2) is a Research Use Only chemical-identity and literature reference on Costides, not for human or veterinary use. Published identity includes CAS 121062-08-6, formula C50H69N15O9, average MW 1024.2 Da, PubChem CID 92432. It is indexed as cyclic melanocortin receptor agonist peptide. The CAS number of Melanotan II is 121062-08-6. Research Use Only. Not for human or veterinary use.
- What is the CAS number of Melanotan II?
- The CAS number of Melanotan II (MT2) is 121062-08-6. Formula and molecular weight appear in the identity table when retrieved.
- Is Melanotan II for human use?
- No. Melanotan II (MT2) pages on Costides are Research Use Only reference materials. They are not medical advice and do not describe administration or dosing.
- What is the molecular weight of Melanotan II?
- The average molecular weight of Melanotan II (MT2) listed on Costides is 1024.2 Da.
- Can I buy Melanotan II from Costides?
- Yes. Melanotan II may appear in the Costides catalog as a Research Use Only 10-pack when published. Check the product listing for SKU, price, and CoA lots.
- Where does identity data for Melanotan II come from?
- Costides indexes registry and bibliographic sources (PubChem, CAS Common Chemistry, PubMed permalinks) when available. Outcome or efficacy claims are not restated on this page.
Citations
- PubChem CID 92432
- CAS Common Chemistry 121062-08-6
- Changes in Oral Mucosa Associated with Melanotan II Injections: A Case Report. PMID 41752902
- DOI for PMID 41752902 PMID 41752902
- Melanotan II nasal spray: a possible risk factor for oral mucosal malignant melanoma? PMID 40210573
- DOI for PMID 40210573 PMID 40210573
- Antidepressant-like and antistress effects of the ACTH(4-10) synthetic analogs Semax and Melanotan II on male rats in a model of chronic unpredictable stress. PMID 39442746
- DOI for PMID 39442746 PMID 39442746