Public COA audit
Tirzepatide
Audited July 29, 2026
Several fields check out, but we found issues worth reviewing before you rely on this document.
- Legitimacy
- 92
- Confidence
- 93%
- Panels
- 2/7
- Purity (printed)
- 99.09%
Document details
Fields extracted from the certificate — not order or payment data.
- Batch / lot
- TIR-006
- Identity method
- LC-MS/MS (Liquid Chromatography Tandem Mass Spectrometry)
- Sample date
- 2026-07-15
- Issue date
- 2026-07-20
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).
Tirzepatide confirmed via LC-MS/MS precursor [M+5H]5+ 963.90 Da with MRM transitions
Purity
Tested · passed · core
Reported purity percentage for the analyte.
99.09%
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.
Comprehensive identity confirmation
LC-MS/MS with precursor ion and dual MRM transitions (quantifier 963.9›136.1, qualifier 963.9›110.1) provides robust identity verification for Tirzepatide
High chromatographic purity
99.09% purity exceeds specification (≥98%) and is typical for research-grade peptides
Label accuracy verified
Net peptide content 10.43 mg vs labeled 10.00 mg yields 104.3% accuracy, exceeding ≥90% specification
Clear sample identification
Sample ID TIR-006, Report No. COA-2026-SC-00310, with CAS number 2023788-19-2 and molecular formula provided
Appropriate timeline
Received 2026-07-15, analyzed and issued 2026-07-20 (5-day turnaround is reasonable)
Professional lab presentation
SideChain Analytics with detailed methodology (Agilent 1290 Infinity II + 6495 QQQ, ESI+), verification URL, and QR code
Limited testing scope
Only identity and purity panels present; no heavy metals, microbial, endotoxin, sterility, or residual solvent testing performed
Professional document structure
Well-organized with clear sections, chromatogram, sample photograph, and appropriate research-use disclaimers
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.