Certificate of Analysis Library
Batch-specific Certificates of Analysis from Janoshik Analytical — HPLC identity/content and mass-spec confirmation for every active catalog vial
We don't make our own purity claims. Every active vial in the catalog ships with a batch-specific Certificate of Analysis from Janoshik Analytical, an independent third-party peptide-testing laboratory. Browse the archive below — every CoA is the same PDF we email after purchase, available here without an order.