Certificates of Analysis

A Certificate of Analysis (COA) is the independent laboratory report that confirms what is actually inside a research compound vial — its identity and purity, verified by a third-party testing facility rather than the supplier itself. Alpha Tides PNW publishes COAs for select products below as batches are tested and documentation becomes available; check back as new certificates are added.

Each certificate lists a batch or lot number, the testing laboratory, and the analytical results, typically HPLC purity and, where applicable, mass-spectrometry identity confirmation. Because a COA is specific to the batch it references, always confirm the lot number on the certificate matches the product on hand.

If a product you are researching does not yet have a Certificate of Analysis listed, it may be awaiting testing rather than untested. Contact us directly if you need documentation for a specific compound or batch not shown here.

For a full walkthrough of what HPLC purity and mass-spectrometry identity data mean, and the red flags to watch for in a supplier’s documentation, see our guide on how to read a peptide Certificate of Analysis.

COAs are published here for select products as batches are independently tested for purity and identity. Browse current certificates below.