Public COA audit

TB-500

Audited July 29, 2026

Mostly consistent, with concerns

Several fields check out, but we found issues worth reviewing before you rely on this document.

Legitimacy
92
Confidence
88%
Panels
4/7
Purity (printed)
99.9%

Document details

Fields extracted from the certificate — not order or payment data.

Batch / lot
dzxpmut
Identity method
HPLC-UV-MS
Sample date
2026-04-16
Issue date
2026-05-05

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.

4 of 7 present · 2 passed · 0 failed · 2 reported · 3 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).

    ID Confirmed

  • Purity

    Tested · passed · core

    Reported purity percentage for the analyte.

    >99.9%

  • Heavy metals

    Tested · result on file

    Lead, arsenic, cadmium, mercury, or similar limits.

  • 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

    Tested · result on file · core

    LAL or chromogenic endotoxin assay.

  • 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 chromatographic purity

    HPLC purity >99.9% is excellent and normal for research-grade peptides

  • Mass spectral confirmation

    Identity confirmed by HPLC-UV-MS with mass spectrum matching TB-500 (CAS 885340-08-9)

  • Batch/lot number present

    Batch dzxpmut clearly identified

  • Dates within normal range

    Sample received 2026-04-16, tested 2026-04-24, report issued 2026-05-05 - all dates are consistent and on or before 2026-07-29

  • Established testing laboratory

    Krause Analytical LLC is a known third-party testing lab in Austin, TX with verification URL provided

  • Methods summary without results

    Page 4 describes methods for endotoxin and heavy metals testing, but no numerical results are shown on page 1 for these panels

  • Watermark overlay

    Large 'FINNRICK' watermark overlays the document, which is unusual for official COAs but may be a reseller/distributor marking

  • Chromatogram and mass spectrum included

    Pages 2-3 show detailed HPLC chromatogram and MS data supporting the purity and identity claims

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.