Lot-matched COA on file GHK-CU
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A tripeptide of glycine, histidine and lysine, supplied as its copper(II) complex. The free tripeptide was first isolated from human plasma in 1973. It coordinates copper(II) with high affinity through the histidine imidazole nitrogen and the terminal amine, and the resulting complex is the form supplied here.
COMPOSITION
Sequence Gly-His-Lys · Supplied as the copper(II) complex · MW 401.91 g/mol for the complex (free tripeptide 340.38) · CAS 89030-95-5
ANALYTICAL SPECIFICATION
Identity confirmed by mass spectrometry against the theoretical molecular weight. Purity by reverse-phase HPLC, reported as area percent. Each lot ships with a certificate of analysis matched to its lot number.
SUPPLY FORMAT
Supplied as a 100 mg vial. Several suppliers in this category stock 50 mg as their largest size.
FORM AND STORAGE
Blue to blue-violet lyophilized powder. The colour is characteristic of the copper complex and serves as a straightforward visual identity check on receipt. Copper complexes are photosensitive; store lyophilized, protected from light, in an amber vial where possible.
Supplied for laboratory research use only. Not for human or veterinary use. No preparation, measurement, handling or application instructions are provided.
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Analytical specifications
| Chemical name | GHK-CU |
|---|---|
| Class | Copper(II) tripeptide complex |
| Sequence | Gly-His-Lys |
| Molecular weight | 401.91 g/mol |
| Molecular formula | C₁₄H₂₂CuN₆O₄ |
| CAS number | 89030-95-5 |
| Purity | ≥ 99.84% (HPLC) |
| Identity | Confirmed by mass spectrometry |
| Form | Lyophilized powder |
| Amount | 100 mg per vial |
| Storage | Store lyophilized, protected from light |
| Current lot | KR260709A |
