How to read a Certificate of Analysis

Research & laboratory use only

This article supports qualified researchers. It is not medical advice and must not be used to plan human or veterinary administration.

Each COA ties to one batch. Parameters include identity (mass spec or sequence mapping), purity (HPLC area%), water content, and endotoxin where applicable.

Reading the table

  • Check parameter, result, and specification columns align — ALL PASS means within spec.
  • Note test method (e.g. HPLC) for your lab notebook citation.
  • Download or print COA from the product page or verify result for audit trail.

Further study

External links are educational. Prefer institutional and peer-reviewed sources; ignore any “home injection” framing on third-party pages.

Related guides

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