Certificate of Analysis
Independent laboratory testing confirms purity and composition of this research peptide.
Endo Passed
Overview
GHK-Cu is a copper-binding tripeptide — a chain of three amino acids (glycine, histidine, and lysine) bound to a copper(II) ion. Its molecular formula is C14H22CuN6O4, with a molecular weight of 401.9 g/mol and CAS number 89030-95-5. The peptide was first identified in 1973 by Loren Pickart during research on human plasma, where he observed that a small copper-peptide complex was present in younger blood samples at higher concentrations than in older ones.
The copper ion is coordinated to the peptide through the nitrogen atoms of the glycine and histidine residues, giving the compound its distinctive blue color in crystalline form. This type of metal-peptide complex is relatively unusual among research peptides. GHK-Cu is naturally found in trace amounts in human plasma, saliva, and urine. It is classified as a metallopeptide — a peptide that incorporates a metal ion as part of its structure. The compound is supplied as a blue to blue-purple lyophilized powder, highly soluble in water, and should be stored refrigerated at 36-46 degrees F (2-8 degrees C) and protected from light.
This product is strictly for research purposes only.
PubChem Reference: View compound profile on NIH PubChem
This product is strictly for research purposes only. It is not approved for human or animal use and should only be handled by qualified researchers in appropriate laboratory settings.
Key Characteristics
MOLECULAR PROFILE
Formula: C14H22CuN6O4
Weight: 401.9 g/mol
CAS: 89030-95-5
Structure: Gly-His-Lys (with bound copper)
PHYSICAL PROPERTIES
Form: Blue crystalline powder (the blue color comes from the copper)
Solubility: Highly water-soluble
Natural Occurrence: Found in human plasma, saliva, and urine
Storage: Keep refrigerated 36–46 °F (2–8 °C), protect from light
