Verify a certificate

1 — Match the lot

The lot number printed on the vial label must appear on the certificate. A certificate with no batch identifier, or one recycled across every batch of a product, describes nothing you are holding.

2 — Read the five fields

A usable COA states the batch identifier, the test date, the method (RP-HPLC for purity as a percentage of total peak area, ESI-MS for identity), the specification it was tested against, and the measured result — with the chromatogram attached. If a certificate anywhere is missing one of these, that absence is the finding.

3 — Ask the lab, not the seller

Where a report is issued by an independent laboratory, the laboratory itself is the authority on whether the document is genuine. Judge any supplier — including us — by whether the document you are shown could only describe the vial in your hand.

Have a certificate or lot number? Request this certificate

There is no automated lookup database yet, and we would rather say so than fake one. Send us the lot number and we will email the certificate for that batch, normally within one business day.

What testing does not prove

A certificate documents laboratory testing of a batch. It does not establish sterility, it does not include endotoxin limits unless the panel says so, it is not an MSDS, and it is not evidence of suitability for use in or on any human or animal. Nothing in our catalog is approved by the FDA or any equivalent authority for such use.