Quality Control & Analytical Testing
Every released lot is supported by lot-specific analytical documentation. Testing status—independent third-party or manufacturer QC—is disclosed per lot in our public CoA Archive, and results are recorded on a lot-specific Certificate of Analysis. This page states exactly which tests are performed, what each one establishes, and — equally important — which tests are not part of our panel. All materials are supplied for laboratory research use only — not for human or veterinary use.
Contents
1. The analytical panel
Four core tests are reported on our Certificates of Analysis. Some certificates additionally report appearance and net peptide content where the issuing laboratory includes them.
| # | Test | Method | What it establishes |
|---|---|---|---|
| 1 | Purity | RP-HPLC, percent area | Proportion of the target peptide relative to organic synthesis by-products, truncated sequences, and degradation products |
| 2 | Identity | Mass spectrometry | That the measured molecular mass matches the expected value for the labeled compound |
| 3 | Heavy metals | ICP-MS | Trace inorganic contamination (lead, arsenic, cadmium, mercury) against a defined limit of quantification |
| 4 | Water content | Karl Fischer titration | Residual moisture in the lyophilized powder, which bears on storage stability |
Each result is tied to the lot number printed on the vial, not to the product listing generally. Current records for every catalog material are published in our CoA archive.
2. Tests we do not run
We state this plainly because the absence is material to how these products may be used:
- Sterility testing is not part of our panel. Our materials are not sterile.
- Endotoxin / pyrogen testing is not part of our panel. No endotoxin limit is established for any lot.
- Biological activity or potency assays are not performed. Purity by peak area is a chemical measurement, not a functional one.
These materials are not manufactured under pharmaceutical current Good Manufacturing Practice (cGMP) conditions. A supplier advertising a longer test panel than it actually performs is misrepresenting its documentation — see our supplier evaluation guide for how to check this on any vendor, including us.
3. Testing laboratories
Analytical testing is performed by named third-party laboratories including Janoshik, Vanguard Laboratory (ISO 17025), Freedom Diagnostics, Chromate, and BTLabs. Where a lot currently carries the synthesis manufacturer's own QC document rather than an independent report, the CoA archive labels it as such rather than describing it as independent. Independent re-testing of those lots is in progress.
4. Chain of custody and lot control
- Material is produced by solid-phase peptide synthesis at a qualified manufacturing facility and received under lot control.
- A sample from each lot undergoes analytical testing — independent third-party or manufacturer QC, disclosed per lot in the CoA Archive.
- Results are recorded on a lot-specific Certificate of Analysis and linked to the catalog listing.
- Following account verification and receipt of the research-use covenant, the order is released and shipped domestically.
The lot number printed on the vial resolves back to its Certificate of Analysis and to the synthesis source. Records are retained to support a procurement audit trail.
5. Verifying a lot
Search the CoA archive by lot or report number to confirm the document on file matches the vial in hand. The full signed certificate is issued to verified account holders on request and ships with the material. See institutional accounts for verification, and How to Read a CoA for a field-by-field walkthrough.
For laboratory research use only. Materials described on this page are chemical reagents supplied exclusively for in-vitro laboratory research by qualified persons. They are not drugs, dietary supplements, foods, cosmetics, or medical devices, are not for human or veterinary use, and are not intended to diagnose, treat, cure, or prevent any disease. See our full Research Use Policy for the terms governing purchases from BNM Research Peptides.