GHK-Cu
GHK-Cu is a copper(II)-binding tripeptide complex — the tripeptide glycyl-L-histidyl-L-lysine coordinated to a copper(II) ion — with the molecular formula C14H24CuN6O4 and a molecular weight of 403.93 g/mol.
GHK-Cu is a tripeptide–copper(II) complex, commonly called a copper peptide: the tripeptide glycyl-L-histidyl-L-lysine coordinated to a copper(II) ion.
Identity & structure
Verified identifiers, sequence, and analytical properties — every value machine-readable and independently sourceable against PubChem.
Primary sequence · 3 residues · Cu(II) complex — the copper is coordinated, not covalently bonded.
| Identity | |
|---|---|
| CAS | 49557-75-7 |
| PubChem CID | 175761262 |
| FDA UNII | 6BJQ43T1I9 |
| Also known as | GHK Cu, GHKCu, Copper peptide, GHK copper peptide, Copper tripeptide-1, Copper peptide GHK-Cu, Glycyl-L-histidyl-L-lysine copper |
| Research class | Regenerative & Cytoprotective |
| Structure | |
| Molecular formula | C14H24CuN6O4 |
| InChIKey | NZWIFMYRRCMYMN-ACMTZBLWSA-N |
| Sequence | Gly-His-Lys · Cu(II) |
| Length | 3 residues + Cu |
| Analytical | |
| Average molecular weight | 403.93 g/mol |
| Monoisotopic mass | 403.1144 Da |
| Form | Lyophilized powder |
| Solubility | Water-soluble |
| Storage | 2–8 °C, desiccated |
Where GHK-Cu sits in its class
Molecular weight (g/mol) across the 15 characterized compounds in Regenerative & Cytoprotective. Compare all compounds →
Research context
GHK-Cu is a copper(II)-binding tripeptide complex — the tripeptide glycyl-L-histidyl-L-lysine coordinated to a copper(II) ion — with the molecular formula C14H24CuN6O4 and a molecular weight of 403.93 g/mol. It is studied in matrix-biology and cytoprotection research and is supplied as a characterized reference material.
Supplied solely as a characterized research material. No representation is made as to any biological effect. For Research Use Only — not for human or veterinary use.
How GHK-Cu is identified
Identity and purity are measured, not asserted. Electrospray mass spectrometry (ESI-MS) determines the mass-to-charge ratio of the intact molecule — an observed value matching the expected series above confirms the molecular formula. Reversed-phase HPLC separates the sample over time, and purity is read as arithmetic: the target peak’s area as a share of total peak area.
Handling & stability
Physical form, storage, and solubility as supplied. Handling guidance only — no use protocols.
Related compounds
Other compounds in this research class.
Frequently asked questions
What is GHK-Cu?
Is GHK-Cu a peptide?
What is the molecular formula of GHK-Cu?
What is the CAS number of GHK-Cu?
How is the identity of GHK-Cu confirmed?
How should GHK-Cu be stored?
Is GHK-Cu approved for human use?
Data, tools & certificates
References
- PubChem — compound identity, structure & computed properties (CID 175761262). PubChem →
- CAS Registry Number 49557-75-7.
- FDA Global Substance Registration System — UNII 6BJQ43T1I9.
Research professionals only
GHK-Cu — from the record to the bench
The monograph and every lot certificate stay public. Pricing and ordering open for verified research professionals.