GHK-Cu

GHK-Cu is a synthetic 3-residue peptide complex whose sequence corresponds to glycyl-L-histidyl-L-lysine, a human tripeptide, supplied as its copper(II) coordination complex. The copper ion is held by the peptide rather than present as a simple mixed salt, so the material behaves as a metal complex in both spectroscopic and chromatographic terms. The catalogue files it under dermatology research and lists Copper tripeptide-1 as a synonym.

The sequence is Gly-His-Lys, written GHK, with the histidine imidazole side chain and the backbone nitrogens supplying the donor atoms that bind the divalent metal. The catalogue entry lists the molecular formula C14H21CuN6O4 and a molecular weight of 400.90 g/mol, a figure that describes the complex rather than the free tripeptide; a CAS registry number is not recorded in this entry. Presentation is a 100 mg vial of lyophilized material.

Lyophilized material is held at -20 C protected from light, and reconstituted solution at 2 to 8 C for short-term laboratory use, with repeated freeze-thaw cycling avoided. Purity and identity are verified by third-party HPLC and mass spectrometry, with a certificate of analysis per lot. The complex has been the subject of published laboratory and preclinical research. It is supplied strictly for laboratory research and is not for human or veterinary use.