This page lists the third-party laboratories that appear on research-use peptide supplier certificates of analysis, together with the verification path for each: the public verify URL where one exists, and what the reader needs to punch in — an accession code, a task code, a report ID, or a per-lot number. We don't accredit labs and we don't rate them. The table exists so a reader can take a COA in hand and check it against the lab that supposedly issued it.
If a lab can't verify a certificate, it is not automatically fraud: certificates age out of databases, report numbers get mistyped, and some reports simply never entered a public portal. The page walks through what to do in each case, including emailing the lab directly and flagging the problem to the desk so the supplier's profile can be updated. A companion section counts which labs are actually named on documented suppliers' certificates, derived from the documentation we opened at review rather than from supplier claims.
No lab pays to be listed here. Labs enter the table when suppliers start submitting certificates that name them. Return to the Supplier Desk for full supplier profiles, compare paperwork on the compare tool, or read Editorial Standards for our independence rules. Suppliers can start a review via the application page.