All TB-500 Certificate of Analysis results— 1256 COAs
TitrateLab · Certificate of Analysis
Tested vendor:Qingdao Sigma Chemical All TB-500 COAs & research All TB-500 results & stats

TB-500 99.0% Purity — Qingdao Sigma ChemicalCertificate of Analysis · Independent third-party lab result

Tested purity 99.0% Acceptable purity
Dose vs label +8.0% Over the labeled dose
Evidence Asserted only Trust: low
AI summary Forum scrape

This COA was extracted from a community forum, where the original poster claimed 'Peptide Test' analyzed QSC's TB-500 (batch TB-500 (TB4) 10mg 1 vial). The reported purity was 98.989%, and the quantity tested at 10.8mg for a 10mg label. However, the lab's signature is not directly verifiable from this re-shared image, creating a chain-of-custody gap. This test is also stale (over 1 year old).

Watch out for
  • stale (1+ years old)
  • chain-of-custody gap
  • no endotoxin test
Test date
2024-12-13
Testing lab
Peptide Test
Batch / lot
TB-500 (TB4) 10mg 1 vial
Quantity
10.8mg
label 10mg · tested 10.8mg
Endotoxins
—
Assay method
—
Context

How this result compares

This TB-500 certificate's tested purity of 98.99% ranks higher than 14% of the 1248 TB-500 certificates with a purity result we have catalogued (median 99.39%).

Tested 2024-12-13 by Peptide Test. This test is newer than 4% of our catalogued TB-500 certificates.

Qingdao Sigma Chemical has 510 certificates in our corpus, including 9 for TB-500 at a median tested purity of 99.40%.

Manufacturer
Qingdao Sigma Chemical
View vendor profile
Source

Third-party community lab

Asserted only
No verifiable evidence captured. This entry was added to our corpus from Third-party community lab. We did not save the certificate image, did not hash an artifact, and the upstream URL is either a domain root or absent — we cannot independently confirm this report existed. Treat as curator-asserted only.
Catalogued
2026-04-24
Related

Other TB-500 certificates

Alpha BioPharma TB-500
98.7% 2026-07-09
Janoshik Peptaris TB-500
99.7% 2026-07-03
Freedom Diagnostics Equitide Peptide Vitality TB-500
99.6% 2026-07-03
Freedom Diagnostics Soma Research, LLC TB-500
99.1% 2026-07-02
Freedom Diagnostics Peptriva Research TB-500
99.8% 2026-07-02
Freedom Diagnostics National Science Labs, LLC TB-500
99.1% 2026-07-02
Freedom Diagnostics Bee Sweet TB-500
99.9% 2026-07-02
Freedom Diagnostics Anvil Compounds TB-500
99.2% 2026-07-02
Freedom Diagnostics
All TB-500 results & stats
This certificate is part of TitrateLab's community-trust corpus. See more from Qingdao Sigma Chemical or learn how trust scores are computed on the methodology page. New to lab reports? How to read a COA →