AHK-Cu

AHK-Cu is the copper(II) complex of the tripeptide Ala-His-Lys (AHK), used in copper-peptide and skin biology research. Every lot is finished in the United States from imported peptide API (purified, filled and lyophilized domestically) and tested by an independent laboratory, with the full Certificate of Analysis published and searchable by lot number once the lot ships.

Identity at a glance

• Sequence: Ala-His-Lys (AHK); single-letter A-H-K
• Molecular formula: C₁₅H₂₄ClCuN₆O₄ (PubChem records the complex as a hydrochloride)
• Molar mass: approximately 451.39 g/mol for the complex as recorded; the copper-free tripeptide is C₁₅H₂₆N₆O₄, approximately 354.41 g/mol
• CAS number: 682809-81-0 (complex); 126828-32-8 (copper-free tripeptide)
• PubChem CID: 168431292 (complex); 7408502 (copper-free tripeptide)
• Appearance: blue to blue-violet lyophilized powder

How it is tested

AHK-Cu is tested the same way as every product we sell: an independent laboratory (Horizon Analytical) runs ultra-high-performance liquid chromatography for chromatographic purity by area normalization, and mass spectrometry for identity, with the observed mass of the peptide compared against the calculated mass for Ala-His-Lys. The certificate for your lot is published on our register, searchable by the lot number on your paperwork.

Verify the Certificate of Analysis for your lot

New to reading a certificate? Our guide on how to read a COA walks through every section.

For Research Use Only. This product is not intended for human or veterinary use, diagnosis, or treatment. Not a drug, supplement, or medical device. Not evaluated by the FDA. For qualified research applications only.

Related compounds in the catalog: GHK-Cu.