Certificate of analysis
GHK-Cu
Every released batch of GHK-Cu, with the analytical record that released it. Figures are the laboratory's measurements — where the label and the assay disagree, the assay is the number to calculate from.
- Batches published
- 01
- Current batch
- EVN-GHK-2606
- Assayed purity
- 99.68%
- Released
- 17 Jun 2026
Current batch
EVN-GHK-2606
VerifiedSigned PDF on request
Determinations
| Determination | Result | Specification | Method |
|---|---|---|---|
| Purity | 99.68% | ≥ 99.0% | RP-HPLC, UV 214 nm |
| Identity | 401.8 Da (theoretical 401.9) | Conforms to theoretical mass | ESI-MS |
| Assayed content | 99.2% of label | 95.0 – 110.0% of label | RP-HPLC against reference standard |
| Water content | 3.2% | ≤ 8.0% | Karl Fischer titration |
| Residual solvents | Acetonitrile 71 ppm; TFA below quantitation | Within USP <467> limits | Headspace GC-FID |
| Appearance | Deep blue lyophilised powder | Conforms | Visual inspection |
Assayed purity99.68%
98%Spec ≥ 99%100%
- Assayed content
- 49.62 mg / 50 mg
- Laboratory
- Meridian Analytical Laboratories
- Accreditation
- ISO/IEC 17025 accredited
- Accession
- MAL-26-06077
- Manufactured
- 4 May 2026
- Tested
- 9 June 2026
- Released
- 17 June 2026
- Retest interval
- 24 months from date of manufacture
Storage conditions
Lyophilised, −20 °C, protected from light and moisture. Oxidation-sensitive — retained sample held under reduced headspace.
Testing standards
The references applied
Compendial standards govern how each determination is made and what limit it is judged against. Naming them is what allows a result to be compared with one produced elsewhere.
- 01USP <1225> — Validation of compendial procedures
- 02USP <467> — Residual solvents
- 03USP <921> — Water determination
- 04ISO/IEC 17025:2017 — Testing laboratory competence
Documentation
Confirm it at the source.
Ask the desk to arrange confirmation of any GHK-Cu certificate directly with the issuing laboratory, or to retrieve an archived batch record.