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Copper-binding / ECM

Copper-binding peptides are short sequences that form stable complexes with copper(II) ions. They are used in coordination-chemistry and extracellular-matrix (ECM) research in cell culture. This family groups the catalog listings used in that literature.

GHK-Cu copper tripeptide (100mg) is the copper(II) complex of the tripeptide glycyl-L-histidyl-L-lysine. The free tripeptide, GHK, is listed in PubChem as C14H24N6O4, 340.38 g/mol (CID 73587) [1]. PubChem lists several copper complexes of GHK under separate records with different formulas and charge states [2], so the lot certificate should state which form, and which copper content, a vial contains. Our GHK-Cu identity note explains the difference between the copper complex and free Gly-His-Lys.

ECM-70 named research blend (70mg) is a catalog blend sold under a name, not under a single CAS number. Its composition is defined by the vial label and the lot documentation, not by a public registry record. Our note on why ECM-70 is a named catalog blend covers how to read its paperwork.

The literature on these materials uses them as laboratory tools: in copper-coordination studies, and in cell-culture models that look at matrix-related markers. Those are research questions, not established outcomes. These listings are research reagents and not cosmetic or consumer products.

Each listing is a sealed lyophilized reagent. Lab COA PDFs are published per product in our COA library, and safety data sheets are on the SDS page. For laboratory research use only.

Sources: [1] PubChem CID 73587 (Gly-His-Lys). [2] PubChem CIDs 139035031, 71587328, 165429100, 9831891 (GHK copper complexes).

For laboratory research use only. Not for human or veterinary use, self-administration, or therapeutic claims. GHK-Cu: Lab COA — view PDF; ECM-70: Lab COA — view PDF.