GHK-Cu

Glycyl-L-histidyl-L-lysine copper(II); copper tripeptide-1

Identity

Sequence

GHK · Cu(II)

Three-letter

Gly-His-Lys · Cu²⁺ (1:1)

Length

3 residues

Modifications

Copper(II) complex; supplied as blue lyophilized powder

Formula

C14H24N6O4 · Cu

Average mass

340.4 (peptide); ≈403.9 (complex) Da

CAS

89030-95-5 (complex); 49557-75-7 (GHK)

Specifications (per released lot)

Purity

≥ 98 % by RP-HPLC, 220 nm

Identity

ESI-MS; observed mass within 0.1 % of calculated

Form

White to off-white lyophilized powder (blue for the copper complex)

Counter-ion

Trifluoroacetate; acetate on request

Net peptide content

Reported per lot (typically 70–90 % of gross mass; the balance is counter-ion and water)

Vial sizes

5 mg · 10 mg · 25 mg net peptide; bulk on quotation

Storage

−20 °C, desiccated, protected from light. Ships at ambient temperature.

Documents

Lot certificate of analysis (COA library); safety data sheet in WHMIS 2015 format, enclosed with every shipment

Research context

Tripeptide–copper(II) complex first isolated from human plasma. Used in fibroblast, collagen-synthesis and wound-model studies and in cosmetic-science formulation research.

Literature context is provided to help laboratories identify the reagent. It is not a claim about effects in people and does not describe any use outside in-vitro or approved animal research.