A Certificate of Analysis (COA) is the analytical record for a specific production batch. It documents what testing was performed and what the results were, so a receiving lab can verify identity and purity before material enters a workflow.
The fields that matter
- Compound identity & sequence — confirms the material matches what was ordered
- Measured purity — the analytical purity value, with the method used (e.g. HPLC)
- Molecular formula & mass — supports identity confirmation, often via mass spec
- Batch / lot number — ties the document to the exact vial you received
- Test date — when the analysis was run
- Supplied form & storage — how the material was prepared and should be kept
Batch-specific beats generic
The single most important quality of a COA is that it's tied to your lot. A generic sheet that could apply to any batch tells you little. A batch-specific COA — with a lot number that matches your vial — is what supports genuine receiving and recordkeeping.
Red flags
- No analytical method named next to the purity figure
- No batch/lot number, or one that doesn't match the vial
- A headline purity claim with no supporting document at all
Research Use Only. V8 Peptides products are supplied strictly for laboratory research and development and are not intended for human or veterinary use, consumption, or any therapeutic or diagnostic purpose.