Public COA audit
MOTS-c (human) · MOTS-c
Audited September 5, 2026
Several fields check out, but we found issues worth reviewing before you rely on this document.
- Legitimacy
- 72
- Confidence
- 85%
- Panels
- 3/7
- Purity (printed)
- 99.5%
Scored moderately because the document is mostly consistent but carries soft concerns, limited panel coverage (3/7), 3 soft concerns, and notable note: "High HPLC purity". To improve: include identity, purity, and endotoxin at minimum and prefer labs with a public verification portal.
Document details
Fields extracted from the certificate — not order or payment data.
- Batch / lot
- 2024030601-1
- Identity method
- HPLC
- Sample date
- 2024-02-16
- Issue date
- 2024-02-28
Original certificate
Embedded copy of the stored COA PDF or image. Download it for your records — PeptIQ’s audit is separate from the lab document itself.
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.
3 of 7 present · 3 passed · 0 failed · 0 reported · 4 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).
Conform (solubility, appearance)
Purity
Tested · passed · core
Reported purity percentage for the analyte.
99.5%
Heavy metals
Not on this certificate file
Lead, arsenic, cadmium, mercury, or similar limits.
No evidence on this file. Vendors sometimes publish separate purity and endotoxin reports for the same lot — check the brand page before treating this as “never tested.”
Microbial
Not on this certificate file
Bioburden / microbial limits testing.
No evidence on this file. Vendors sometimes publish separate purity and endotoxin reports for the same lot — check the brand page before treating this as “never tested.”
Endotoxin
Not on this certificate file · core
LAL or chromogenic endotoxin assay.
No evidence on this file. Vendors sometimes publish separate purity and endotoxin reports for the same lot — check the brand page before treating this as “never tested.”
Sterility
Not on this certificate file
Sterility testing where applicable.
No evidence on this file. Vendors sometimes publish separate purity and endotoxin reports for the same lot — check the brand page before treating this as “never tested.”
Residual solvent / water
Tested · passed
Residual solvents or water content limits.
Water: 4.1%, Acetic Acid: 8.2%
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 on this file
Not on this certificate file. Lowers file thoroughness; a sibling endotoxin/purity report for the same lot may still exist. PeptIQ’s score still factors coverage.
Findings
Evidence-linked observations from this audit.
High HPLC purity
99.5% peptide purity by HPLC with 0.5% total impurities and 0.5% largest single impurity, meeting ≥98.0% specification
Identity checks present
Appearance and solubility tests conform to specifications
No lab identification
Document does not identify the testing laboratory name, address, or accreditation. Only analyst names provided (Cheng Diya, Guo Sirui, Wang Haiyan)
Limited testing scope
This COA covers purity/identity testing only. No heavy metals, microbial, endotoxin, or sterility panels present. This may be a purity-focused report with other testing documented separately
Watermark present
Document contains a 'Denpeptides' watermark overlay, suggesting this may be a vendor's internal or sample document rather than an official lab report
Date consistency
Production date 2024-02-16, survey/issue date 2024-02-28, retest date 2026-02-15 are all logically consistent
Batch information complete
Batch number 2024030601-1, CAS 1627580-64-6, molecular formula and weight provided
Timing & next steps
Practical follow-ups based on document age and gaps.
coa age
This COA was issued over a year ago (920 days) — consider whether a retest is warranted for this batch.
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.