Understand the source comparison
AHK-Cu Real vs Fake: Supplier Comparison
Before purchasing AHK-Cu from any supplier, use this framework to evaluate authentication standards and storage protocols. HPLC Chromatogram Provided on request; shows single peak at ≥98% purity Not available or shows multiple peaks indicating impurities HPLC
No winner is assigned.
This page preserves a source comparison for education. It does not add a rating, recommendation or clinical judgment.
- Before purchasing AHK-Cu from any supplier, use this framework to evaluate authentication standards and storage protocols.
- HPLC Chromatogram
- Provided on request; shows single peak at ≥98% purity
- Not available or shows multiple peaks indicating impurities
- HPLC is the baseline verification. Absence of this data is disqualifying
- Copper Content (ICP-MS)
- 8–10% by mass; documented via third-party testing
- Not tested or falls outside 7–11% range
- Copper below 7% suggests incomplete chelation; above 11% indicates free copper contamination
- Endotoxin Testing (LAL Assay)
- <0.25 EU/mg; documented in Certificate of Analysis
- Not tested or exceeds 0.5 EU/mg
- Endotoxin contamination confounds biological activity. This is non-negotiable for research use
- Heavy Metal Content
- <10 ppm total (lead, cadmium, mercury) via ICP-MS
- Not tested or uses industrial-grade copper salts
- Heavy metals introduce toxic variables into any biological assay. Verification protects data integrity
- Storage and Shipping
- Lyophilized under inert gas; shipped with cold packs and temperature monitoring
- Shipped at ambient temperature or without insulation
- A single temperature excursion above 25°C degrades copper peptides irreversibly
- Reconstitution Guidance
- Provides aliquoting instructions and degradation timelines
- Generic 'store refrigerated' guidance with no degradation data
- Post-reconstitution stability is <4 weeks. Suppliers who don't specify this don't understand the compound