Peptide bonds absorb below about 230 nanometres, and the imidazole ring adds absorbance in the same region. This is where peptides are detected in HPLC and where concentration of total peptide is estimated. Copper-free GHK and the complex look alike here.
A charge-transfer band from ligand to copper can also appear in the near-ultraviolet.
Copper(II) with nitrogen donors absorbs in the visible, producing the characteristic blue to violet. The band is broad and weak compared with ultraviolet absorbance, and its maximum shifts with the number and kind of donor atoms. Three nitrogens give a different maximum from one; copper in water gives another again.
The visible band is therefore a probe of the coordination, not just of the presence of copper.
That copper is present and coordinated by nitrogen donors, and approximately how much complex is in solution. It does not resolve impurities or quantify the free peptide. It is a quick, non-destructive check that complements chromatography and mass spectrometry.
GHK-Cu is supplied by REVIVE LAB UAE for laboratory research use only, with identity by mass spectrometry and purity by HPLC for the batch. It is not for human or veterinary use, and no dosing, administration or protocol guidance is provided.
| Format | Strength | Price | Availability |
|---|---|---|---|
| GHK-Cu Pack | 50 mg | AED 425 | In stock |
Delivery is AED 40 flat and free on orders over AED 700. Payment is cash on delivery anywhere in the UAE, or USDT (TRC20) in advance, which takes 5% off the order total.
Peptide bonds absorb below about 230 nanometres, and the imidazole ring adds absorbance in the same region. This is where peptides are detected in HPLC and where concentration of total peptide is estimated. Copper-free GHK and the complex look alike here.
No. REVIVE LAB UAE supplies research materials and provides no dosing, administration or protocol guidance of any kind. Every product is sold for laboratory research use only and is not for human or veterinary consumption.
Stock is held in Dubai. An order confirmed before 4 PM Dubai time is dispatched the same working day, reaching Dubai and Abu Dhabi the same day and the remaining emirates within 24 hours. Delivery is AED 40 flat and free over AED 700.
Supplied for laboratory research use only. Not for human or veterinary consumption. REVIVE LAB UAE provides no dosing, administration or protocol guidance.