TB-500 94.4% Purity — Qing Li PeptideCertificate of Analysis · Independent third-party lab result
LabA tested this TB-500 batch at 94.36% purity using HPLC and mass quantification. The tested quantity of 11.75mg showed a significant 17.5% deviation from the 10mg label. Endotoxin status is unknown, and the test is older (6-12 months). Customers can cross-check on the lab's public verification URL.
- no endotoxin test
- stale (6-12 months)
- high quantity deviation (17.5%)
- Test date
- 2025-07-16
- Testing lab
- LabA
- Batch / lot
- (no batch ID)
- Quantity
- 11.75mg
- Endotoxins
- —
- Assay method
- HPLC + mass quantification + endotoxins
- Test score
- 2.3
- Label dose
- 10mg
How this result compares
This TB-500 certificate's tested purity of 94.36% ranks higher than 3% of the 1248 TB-500 certificates with a purity result we have catalogued (median 99.39%).
Tested 2025-07-16 by LabA via HPLC + mass quantification + endotoxins. This test is newer than 12% 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
Finnrick
Artifact capturedWe have the certificate image (SHA-256 hash captured) — you can verify it loads from the upstream lab and matches the artifact shown here.
Verify on the upstream labSaved source document
sha256:46a78dcad1d05007…
— immutable copy held by TitrateLab