For laboratory research use only — not for human consumption
Comparison
A neutral, structural comparison of GHK-Cu and Melanotan 2 as research compounds — written for researchers evaluating the two. It describes structure and research context only; it makes no human-use, dosing, or therapeutic claim. Both are supplied for in-vitro laboratory research use only.
| GHK-Cu | Melanotan 2 | |
|---|---|---|
| Class | Copper-binding tripeptide complex | Cyclic α-MSH analogue |
| Research area | Copper-peptide & matrix-signalling research | Melanocortin-receptor research |
| CAS number | 49557-75-7 | 121062-08-6 |
| Molecular formula | C14H22CuN6O4 | C50H69N15O9 |
| Sequence | Gly-His-Lys · Cu(II) | Ac-Nle-cyclo[Asp-His-D-Phe-Arg-Trp-Lys]-NH2 |
| HPLC purity | 99.72% | 99.1% |
GHK-Cu is a naturally occurring copper-binding tripeptide complex (glycyl-L-histidyl-L-lysine bound to copper(II)) studied in laboratory research into matrix remodelling and copper-transport signalling. Its well-defined structure makes it a common reference compound in copper-peptide research.
Melanotan 2 is a synthetic cyclic analogue of alpha-melanocyte-stimulating hormone (α-MSH) studied in laboratory research into the melanocortin receptor system. Its cyclic structure gives it stability that makes it a common research reference in this receptor family.
Both compounds are supplied strictly for in-vitro laboratory research use only. Not for human or veterinary use. This comparison is structural and contextual and does not constitute advice on use.