Tirzepatide 99.8% Purity — Qingdao Sigma ChemicalCertificate of Analysis · Independent third-party lab result
This COA was extracted from a community forum, with the original poster claiming QSC tested their Tirzepatide batch (TZ 30mg 1 vial). The reported purity was 99.825%, and the tested quantity was 32.3mg against a 30mg label (7.67% deviation). The lab's signature is not directly verifiable, and the test is stale (over 1 year old). This should be treated as community signal, not confirmation.
- chain-of-custody gap
- stale (1+ years old)
- no endotoxin test
- Test date
- 2024-11-25
- Testing lab
- Qingdao Sigma Chemical
- Batch / lot
- TZ 30mg 1 vial
- Quantity
- 32.3mg
- Endotoxins
- —
- Assay method
- —
How this result compares
This Tirzepatide certificate's tested purity of 99.83% ranks higher than 50% of the 7378 Tirzepatide certificates with a purity result we have catalogued (median 99.82%).
Tested 2024-11-25 by Qingdao Sigma Chemical. This test is newer than 4% of our catalogued Tirzepatide certificates.
Qingdao Sigma Chemical has 510 certificates in our corpus, including 82 for Tirzepatide at a median tested purity of 99.72%.