Public COA audit
TB-500
Audited July 29, 2026
Several fields check out, but we found issues worth reviewing before you rely on this document.
- Legitimacy
- 92
- Confidence
- 88%
- Panels
- 2/7
- Purity (printed)
- 99.12%
Document details
Fields extracted from the certificate — not order or payment data.
- Batch / lot
- APR-7308120
- Identity method
- UPLC/MS (Ultra High Performance Liquid Chromatography with Mass Spectrometry)
- Sample date
- 2026-02-18
- Issue date
- 2026-02-28
7-panel checklist
Had data + good, had data + bad, reported without pass/fail, or missing. Missing lowers thoroughness — you decide whether that panel matters; PeptIQ’s score still factors coverage.
2 of 7 present · 2 passed · 0 failed · 0 reported · 5 missing
Missing is a thoroughness gap — not automatically bad. PeptIQ’s legitimacy score still weighs panel coverage; you can down-weight panels that don’t matter for your use case.
Identity
Tested · passed · core
Compound identity confirmed (e.g. HPLC, mass spec).
TB-500 confirmed, PubChem CID: 16132341
Purity
Tested · passed · core
Reported purity percentage for the analyte.
99.12%
Heavy metals
Not on this COA
Lead, arsenic, cadmium, mercury, or similar limits.
No evidence for this panel. That lowers thoroughness — whether it matters depends on what you care about.
Microbial
Not on this COA
Bioburden / microbial limits testing.
No evidence for this panel. That lowers thoroughness — whether it matters depends on what you care about.
Endotoxin
Not on this COA · core
LAL or chromogenic endotoxin assay.
No evidence for this panel. That lowers thoroughness — whether it matters depends on what you care about.
Sterility
Not on this COA
Sterility testing where applicable.
No evidence for this panel. That lowers thoroughness — whether it matters depends on what you care about.
Residual solvent / water
Not on this COA
Residual solvents or water content limits.
No evidence for this panel. That lowers thoroughness — whether it matters depends on what you care about.
How to read this
Had data · good
Panel present with a pass (or clear acceptance).
Had data · bad
Panel present with a fail — a concrete quality signal.
Had data · unclear
Value reported without an explicit pass/fail mark.
Missing
Not on this certificate. Lowers thoroughness; you decide if that panel matters for your use case. PeptIQ’s score still factors coverage.
Findings
Evidence-linked observations from this audit.
High purity confirmed
99.12% purity by UPLC, exceeds >98% specification. This is normal for research-grade peptides.
Identity confirmed by UPLC/MS
Compound identified as TB-500 with PubChem CID 16132341, molecular formula C212H350N56O78S, molecular weight ~4963 g/mol. Mass spectrometry data shows expected peaks.
Batch information complete
Lot number APR-7308120 clearly stated, matches client name American peptide research.
Dates are reasonable
Received 2026-02-18, analysis conducted 2026-02-28 (10-day turnaround). Both dates are before today (2026-07-29).
Lab verification not independently confirmed
Horizon Analytical is stated with contact email and verification URL, but independent verification of this lab's existence and accreditation was not performed in this audit.
Limited testing scope
Only identity and purity panels present. No heavy metals, microbial, endotoxin, sterility, or residual solvent testing. This is common for basic research COAs but limits safety assurance.
Professional presentation
Document includes chromatograms (UPLC and MS), QR code for validation, signature from Research and Formulation Chemist Aleksey Yevtodiyenko PhD, and standard disclaimer for research use.
PeptIQ COA reports analyze document content and publicly verifiable lab signals. They are educational and not a guarantee of product quality, legality, or safety. Always consult a qualified professional before making health decisions. We never publish purchase prices, shipping details, or uploader identity.