TB-500 98.7% Purity — Qing Li PeptideCertificate of Analysis · Independent third-party lab result
This COA was tested by an independent third-party lab, LabE. The TB-500 batch (TB10/2025-06) showed 98.66% purity via HPLC and mass quantification. The tested quantity of 10.3mg represents a significant deviation from the 10mg label, and endotoxin status is unknown. The test is recent (3-6 months old).
- quantity deviation (-27.2%)
- no endotoxin test
- Test date
- 2025-11-25
- Testing lab
- LabE
- Batch / lot
- TB10/2025-06
- Quantity
- 10.3mg
- Endotoxins
- —
- Assay method
- HPLC + mass quantification + endotoxins
- Test score
- 4.1
- Label dose
- 10mg
How this result compares
This TB-500 certificate's tested purity of 98.66% ranks higher than 11% of the 1248 TB-500 certificates with a purity result we have catalogued (median 99.39%).
Tested 2025-11-25 by LabE via HPLC + mass quantification + endotoxins. This test is newer than 32% of our catalogued TB-500 certificates.
Qing Li Peptide has 348 certificates in our corpus, including 19 for TB-500 at a median tested purity of 95.70%.
Test report image
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