PT-141 100.0% Purity — Qing Li PeptideCertificate of Analysis · Independent third-party lab result
LabE tested this PT-141 batch (sep,4.2025) at 99.95% purity via HPLC. However, the tested quantity was significantly lower than labeled, at 3.49mg against a 5mg label (-30.2% deviation). Endotoxin status is unknown. The test is older (6-12 months). Customers can cross-check on the lab's public verification URL.
- significant quantity deviation
- no endotoxin test
- older (6-12 months)
- Test date
- 2025-10-21
- Testing lab
- LabE
- Batch / lot
- sep,4.2025
- Quantity
- 3.49mg
- Endotoxins
- —
- Assay method
- HPLC + mass quantification + endotoxins
- Test score
- 6.9
- Label dose
- 5mg
How this result compares
This PT-141 certificate's tested purity of 99.95% ranks higher than 86% of the 624 PT-141 certificates with a purity result we have catalogued (median 99.89%).
Tested 2025-10-21 by LabE via HPLC + mass quantification + endotoxins. This test is newer than 28% of our catalogued PT-141 certificates.
Qing Li Peptide has 348 certificates in our corpus, including 7 for PT-141 at a median tested purity of 99.92%.
Test report image
Finnrick
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