Copper peptides
GHK-Cu research peptide
GHK-Cu is the copper(II) complex of the tripeptide glycyl-L-histidyl-L-lysine. The GHK tripeptide was first identified in human plasma in 1973, and its high affinity for copper ions has made the complex a standard reference compound in copper-peptide coordination chemistry.
For in-vitro laboratory research only. Not for human or veterinary use.
Specifications
- Compound
- GHK-Cu
- Also known as
- Copper tripeptide-1; Glycyl-L-histidyl-L-lysine copper complex
- Class
- Copper peptides
- Length
- 3 amino acids plus copper(II)
- Sequence
Gly-His-Lys · Cu(II)- Molecular formula
- GHK: C14H24N6O4 (complexed with Cu2+)
- Molecular weight
- 340.4 (GHK ligand) g/mol
- Form
- Lyophilized powder, sealed vial
- Vial sizes
- 50mg, 100mg
- Purity release standard
- ≥ 99.0% by HPLC-UV, identity by LC-MS
- Storage
- −20 °C, dry, protected from light
- PubChem
- CID 139035031
Lot release testing
Each GHK-Cu lot is released only after it passes every assay below. Lots under 99.0% purity do not ship.
| Assay | Method | Release criterion |
|---|---|---|
| Purity | HPLC-UV | ≥ 99.0% |
| Net peptide content | Quantitative HPLC | ≥ 100% of label |
| Identity | LC-MS | Matches theoretical mass |
| Appearance | Visual | White lyophilized cake |
| Fentanyl screen | LC-MS/MS | Not detected |
| Heavy metals | ICP-MS | Within specification |
| Sterility | PCR | Not detected |
| Endotoxin | LAL | Within specification |
Frequently asked questions
What is GHK-Cu?
GHK-Cu is the copper(II) complex of the tripeptide glycyl-L-histidyl-L-lysine. The GHK tripeptide was first identified in human plasma in 1973, and its high affinity for copper ions has made the complex a standard reference compound in copper-peptide coordination chemistry.
How is each GHK-Cu lot tested?
Every lot is tested at an ISO/IEC 17025 accredited third-party laboratory against an eight-assay panel: HPLC-UV purity, quantitative net peptide content, LC-MS identity, appearance, a fentanyl screen, heavy metals by ICP-MS, sterility by PCR, and endotoxin by LAL. The certificate is published before the lot ships.
How do I verify the certificate for my GHK-Cu vial?
Scan the QR code on the vial label to open the certificate for that exact lot, or search the lot number in the North Wall COA library.
Is GHK-Cu for human use?
No. North Wall sells this compound solely for in-vitro laboratory research by qualified researchers aged 21 and over. It is not for human or veterinary use, and North Wall does not provide use, preparation, or dosing guidance.
Related reference pages
BlendsGHK-Cu / TB-500 / BPC-157 Blend50/10/10mg
BlendsGHK-Cu / TB-500 / BPC-157 / KPV Blend50/10/10/10mg
Synthetic peptide fragmentsKPV10mgMolecular data: PubChem CID 139035031. Lot-specific values appear on the certificate for each batch.