GHK-Cu Nasal Spray certificate of analysis, lot PL-2610-069
Certificate PL-26-00187 reports the release tests for GHK-Cu Nasal Spray lot PL-2610-069: 99.62% purity by reverse-phase HPLC and identity confirmed by LC-MS, tested October 5, 2026. The lot number printed on each unit matches this certificate.
| Certificate number | PL-26-00187 |
|---|---|
| Lot number | PL-2610-069 |
| Compound | GHK-Cu Nasal Spray 50 mg |
| Sequence | H-GHK-OH · Cu(II) (1:1 complex; copper bound by the Gly α-amine, the Gly–His amide nitrogen and the His imidazole) |
| Molecular formula | C14H22CuN6O4 |
| CAS number | 89030-95-5 |
| Purity (RP-HPLC) | 99.62% |
| Identity (LC-MS) | Conforms (401.89 Da) · expected 401.91 Da, found 401.89 Da |
| Method | RP-HPLC (UV 214 nm) + LC-MS |
| Tested | October 5, 2026 |
| Retest by | October 2, 2028 |
| Tested by | Manufacturer’s in-house laboratory (not an independent third-party test) |
| Conclusion | Conforms |
Tests run on this lot
| Test | Method | Specification | Result |
|---|---|---|---|
| Identity (mass) | LC-MS, ESI positive | Theoretical ± 1.0 Da | 401.89 Da (PASS) |
| Purity | RP-HPLC, UV 214 nm, area% | ≥ 99.0% | 99.62% (PASS) |
| Largest impurity | RP-HPLC, area% | ≤ 1.0% | 0.20% (RT 12.20) (PASS) |
| Assay (label claim) | Assay vs label claim | 28.5–31.5 mg/bottle | 29.42 mg/bottle (PASS) |
| Bacterial endotoxin | LAL, kinetic | ≤ 5.0 EU/mg | 0.342 EU/mg (PASS) |
| Aerobic count (TAMC) | USP <61> | < 10 CFU/mL | < 10 CFU/mL (PASS) |
| Yeast & mold (TYMC) | USP <61> | < 10 CFU/mL | < 10 CFU/mL (PASS) |
| E. coli | USP <62> | Absent | Absent (PASS) |
What these results mean
HPLC purity is the share of UV-detectable material that elutes as the target compound; it is not the same as net peptide content, which also accounts for water and counter-ions. Identity means the measured mass matched the mass calculated for the compound. A certificate reports only the tests run on this lot; endotoxin, sterility and contaminant panels are not part of standard lot release. How to read a certificate of analysis.
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