Semax certificate of analysis, lot PL-2610-185
Certificate PL-26-00298 reports the release tests for Semax lot PL-2610-185: 99.71% purity by reverse-phase HPLC and identity confirmed by LC-MS, tested October 8, 2026. The lot number printed on each unit matches this certificate.
| Certificate number | PL-26-00298 |
|---|---|
| Lot number | PL-2610-185 |
| Compound | Semax 5 mg |
| Sequence | H-MEHFPGP-OH (7 residues; free N- and C-termini) |
| Molecular formula | C37H51N9O10S |
| CAS number | 80714-61-0 |
| Purity (RP-HPLC) | 99.71% |
| Identity (LC-MS) | Conforms (813.89 Da) · expected 813.9 Da, found 813.89 Da |
| Method | RP-HPLC (UV 214 nm) + LC-MS |
| Tested | October 8, 2026 |
| Retest by | October 7, 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 | 813.89 Da (PASS) |
| Purity | RP-HPLC, UV 214 nm, area% | ≥ 99.0% | 99.71% (PASS) |
| Largest impurity | RP-HPLC, area% | ≤ 1.0% | 0.12% (RT 9.50) (PASS) |
| Water content | Karl Fischer | ≤ 5.0% | 2.61% (PASS) |
| Bacterial endotoxin | LAL, kinetic | ≤ 5.0 EU/mg | 0.345 EU/mg (PASS) |
| Sterility | USP <71>, 14-day | No growth | No growth (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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Other Semax lots
- PL-26-00299, lot PL-2610-186, 99.55%, tested October 9, 2026
- PL-26-00096, lot PL-2609-096, 99.76%, tested September 19, 2026
- PL-26-00095, lot PL-2609-095, 99.57%, tested September 19, 2026
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