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How to Read a Certificate of Analysis

A practical guide to understanding CoA documents, purity metrics, and what third-party testing means for research materials.

6 min readRoWellness Research

A Certificate of Analysis (CoA) is a document provided by an independent testing laboratory that verifies the identity, purity, and quality of a research compound. Understanding how to read a CoA is essential for any research professional.

Key Sections of a CoA

  • Product Identification: Batch number, product name, and manufacturing date.
  • Test Results: Purity percentage, molecular weight, and analytical methods.
  • Methodology: HPLC, mass spectrometry, or other analytical techniques used.
  • Approval: Signatures and dates from the testing laboratory.

RoWellness provides CoA documentation for qualified research accounts to ensure transparency and confidence in every batch.