CERTIFICATE ARCHIVECERTIFICATE ARCHIVE/KRN-KLOW · LOT 26078
KRN-KLOW
LOT 26078 · CURRENT RECORD
99.81%PURITY · HPLC-UV · USA
26078LOT · MFG 2026-03-18 · EXP 2027-03-17
2 LABSKOREA + USA · INDEPENDENT
Match the LOT number printed on your packaging to the record on this page. This is the permanent certificate record for KRN-KLOW; each production lot's certificates are added here as the lot is released.
RESULTS · ON THE PAGE, IN FULL
CERTIFICATE 01 · POSTECH · KOREAPohang University of Science and Technology · prepared 2026-03-28 · approved 2026-03-30
| APPEARANCE | Clear, colorless to blue liquid, free from visible foreign particles | COMPLIES |
| pH | Spec 5.0 – 5.5 | 5.4 |
| PURITY | Spec ≥ 97 % | 99 % |
| ENDOTOXIN | < 10 EU/mg | COMPLIES |
| MICROBIAL · TOTAL BACTERIA COUNT | < 10 CFU | COMPLIES |
| MICROBIAL · MOLD AND YEAST COUNT | < 10 CFU | COMPLIES |
| PRESERVATIVE EFFECTIVENESS | 5-organism panel (E. coli, P. aeruginosa, S. aureus, C. albicans, A. brasiliensis) · required Log₁₀ reduction criteria met through day 30 | COMPLIES |
CERTIFICATE 02 · FREEDOM DIAGNOSTICS · USAAccession 2606180074 · received 2026-06-18 · reported 2026-06-21
| PURITY · HPLC-UV | HPLC with UV detection coupled with mass spectrometry | 99.81% |
| IDENTITY · LC-MS | Molecular identity by mass-to-charge confirmation | CONFIRMED |
| ENDOTOXIN · USP <85> | LAL assay per USP <85> · 2 replicates · Pass (sensitivity ≤ 0.05 EU/mL) | PASS |
| MICROBIAL · PCR | PCR panel · no detectable microbial DNA · Pass | PASS |
| APPEARANCE | Visual inspection | BLUE LIQUID |
Chromatogram and mass-confirmation plots for this analysis are in the signed PDF. Search code Stac2606180074 at FreedomDiagnosticsTesting.com.
WHAT THESE TESTS MEASURE
Purity · HPLC-UV
High-performance liquid chromatography with UV detection separates the compound from related impurities and quantifies each fraction. The reported percentage is the share of the sample that is the stated compound.
Identity · LC-MS
Mass spectrometry coupled to liquid chromatography confirms molecular identity by measuring exact mass-to-charge ratios. It answers one question: is the molecule exactly what the label says.
Endotoxin · LAL (USP <85>)
The Limulus Amebocyte Lysate assay detects bacterial endotoxins against the USP <85> standard. Run in replicate with a stated assay sensitivity.
Microbial testing
Culture-based counts (total bacteria, mold and yeast) and PCR-based detection screen for microbial contamination. A pass means counts within specification and no detectable microbial DNA respectively.
Preservative effectiveness · 30 days
The sealed liquid format is challenged with five organisms (E. coli, P. aeruginosa, S. aureus, C. albicans, A. brasiliensis) and must suppress them to defined Log₁₀ reduction criteria across 30 days. This test exists because KRN ships pre-compounded, pre-filled cartridges. Powder suppliers do not run it.
STORAGE & HANDLING
Refrigerate 2–8 °C. Protect from light. Sealed at origin; supplied strictly for laboratory research use.
VERIFY THIS PAGE · you should be at
https://coa.krnpeptides.com/klow/ · every future production lot publishes its certificates here before a single unit ships.FOR RESEARCH PURPOSES ONLY · NOT FOR HUMAN CONSUMPTION
KRN · krnpeptides.com · pharmaceutical-grade research peptides · Made in Korea (한국산)