How to Read a Peptide COA
A plain-language guide to the common sections buyers encounter when reviewing a certificate of analysis for research-use-only compounds.
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Identify the material
Start with the product name, batch or lot identifier, specification and any stated strength or form.
Review analytical results
Look for the analytical method, reported result and specification or acceptance criterion. The exact interpretation depends on the method and material.
Check traceability
The document should make it possible to connect the reported results with the batch being supplied.
Ask questions when needed
If a result, method or terminology is unclear, request clarification rather than assuming that a single percentage tells the full analytical story.
Continue researching
For current specifications and wholesale availability, browse the catalog, explore the compound categories, or request a quote.