Ask sales for the lot-numbered COA. Net peptide content, RP-HPLC, ESI-MS, or other results appear only when they are part of that batch's agreed analytical scope.
Lot-numbered COA available; the certificate states the tests actually completed.
Batch COA records net peptide content when included in the agreed specification.
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Ala-His-Lys copper(II) chelate; metallotripeptide reference standard
Overview
AHK-Cu is a copper-binding tripeptide reference standard in which alanyl-histidyl-lysine (Ala-His-Lys) chelates a divalent copper ion to form a defined metallopeptide; it belongs to the same copper-tripeptide class as GHK-Cu but carries an alanine rather than a glycine at position one. It is studied in tissue-repair and hair-follicle research contexts. Lyochem supplies AHK-Cu as a lyophilized reference standard characterised by reversed-phase HPLC for peptide purity, ESI-MS for the intact metallopeptide mass, and ICP-MS or a colorimetric assay for copper stoichiometry, confirming the copper is coordinated rather than merely co-present. Ask sales for the batch COA matched to the offered or supplied lot. Depending on the agreed analytical scope, its supporting file can include counter-ion and water-content data.
Applications & buyer fit
Repair peptides — BPC-157, TB-500, B7-33, PEG-MGF — ship primarily to research laboratories. The applicable batch COA records the tests actually completed. Tandem-MS sequence evidence is an additional agreed scope when the buyer's written procedure requires it, not a blanket requirement to repeat release testing.
Academic Laboratories
Universities, medical schools, and government research institutes qualifying a reference standard for a method-development or in vivo workflow.
Biotech R&D Groups
Preclinical biotech and pharmaceutical discovery teams sourcing characterized peptides for receptor-pharmacology, screening, and method-development campaigns.
Every release ships with its own batch-specific CoA — identity, purity, and the analytical scope agreed at quote stage, tied to the exact lot you receive.
Review a representative batch CoA before you order, so you can confirm the packet matches what your method or sponsor audit needs.
Supplied strictly as a research reagent to research institutions — not a finished dosage form and not for human administration. Buyer qualification runs at the inquiry stage.
Specifications
Documentation available on request
Regulatory note
Offered by Lyochem solely as an analytical and laboratory research material. This metallopeptide is not supplied for human or veterinary use, for incorporation into consumer or cosmetic products, or for any clinical application.
Selected literature
Frequently asked questions
The two copper tripeptides differ by a single residue (Ala-His-Lys vs Gly-His-Lys), giving a distinct intact mass and RP-HPLC retention. Lyochem confirms identity by ESI-MS against the AHK-Cu mass and by sequence-level LC-MS/MS, so the reference standard is unambiguously the alanine-containing complex.
Copper stoichiometry is measured by ICP-MS or a validated colorimetric copper assay and reported alongside peptide purity, since a copper-tripeptide's identity depends on the metal being coordinated to the peptide. Water content and counter-ion are included on the COA.
Related peptides