Tirzepatide 99.7% Purity — Qing Li PeptideCertificate of Analysis · Independent third-party lab result
This COA was tested by an independent third-party lab, LabG. The Tirzepatide batch (July 15,2025) showed 99.7% purity via HPLC. The tested quantity was 42.1mg against a 40mg label, a deviation of +5.3%. Endotoxin status is unknown. The test is recent (3-6 months old) and customers can verify on the lab's public URL.
- no endotoxin test
- Test date
- 2025-12-05
- Testing lab
- LabG
- Batch / lot
- July 15,2025
- Quantity
- 42.1mg
- Endotoxins
- —
- Assay method
- HPLC + mass quantification + endotoxins
- Test score
- 9.4
- Label dose
- 40mg
How this result compares
This Tirzepatide certificate's tested purity of 99.70% ranks higher than 26% of the 7378 Tirzepatide certificates with a purity result we have catalogued (median 99.82%).
Tested 2025-12-05 by LabG via HPLC + mass quantification + endotoxins. This test is newer than 44% of our catalogued Tirzepatide certificates.
Qing Li Peptide has 348 certificates in our corpus, including 49 for Tirzepatide at a median tested purity of 99.80%.
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:c64415f72e6d978e…
— immutable copy held by TitrateLab