GHK-Cu Copper Tripeptide
GHK-Cu copper tripeptide complex at 99.1% HPLC purity, supplied as a stable lyophilized powder for laboratory research applications.
- Purity (HPLC)
- 99.1%
- Fill weight
- 50 mg / vial
- CAS number
- 89030-95-5
- Form
- Lyophilized powder
- Assay
- RP-HPLC + mass spectrometry
- Storage
- −20 °C, protected from light
About GHK-Cu as a reference compound
GHK-Cu is a naturally occurring tripeptide–copper(II) complex used extensively as a reference standard in matrix biology and analytical method development. PureLabs supplies GHK-Cu with verified copper stoichiometry alongside standard purity and identity assays, so results remain comparable across production runs.
Handling and storage
- Store lyophilized powder at −20 °C in a desiccated environment.
- Protect solutions from prolonged light exposure.
- Use metal-free labware where copper contamination would confound results.
GHK-Cu — frequently asked questions
Common laboratory questions about sourcing, purity, storage and shipping of GHK-Cu.
Is copper content verified?
Yes. In addition to HPLC purity, each lot is checked for copper stoichiometry so complexation is consistent between batches.
Why does GHK-Cu solution appear blue?
The blue tint comes from the copper(II) ion bound in the tripeptide complex. A clear, faint blue solution is expected once the powder is fully dissolved.
How should GHK-Cu be protected during storage?
Keep vials sealed at −20 °C, shielded from light, and avoid contact with strong chelators or reducing agents that can strip the copper from the complex.
Is copper content verified on the certificate?
Yes — the release assay confirms peptide purity by HPLC and identity by mass spectrometry for the copper-bound complex, not the free peptide alone.
Can GHK-Cu be shipped worldwide?
Yes, cold-chain with tracking from our EU depot, subject to local import regulations for research chemicals.