glossary
Certificate of Analysis (COA)
The per-batch analytical record documenting identity and purity of a chemical sequence.
reference · By Defiance International ·
A Certificate of Analysis (COA) is the per-batch analytical record for a chemical sequence. It documents identity confirmation (typically HPLC / MS), measured purity, and the testing laboratory. Every batch we ship is traceable to its COA via the vial QR code, so the material in hand can be verified against its independently tested results.