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PEPTIDE DOSSIER · PRACTICAL TOOLS

How to read a peptide COA

Explore a synthetic teaching specimen, understand the measurements and prepare questions for the issuer.

SYNTHETIC EDUCATIONAL SPECIMEN · NO REAL SAMPLE · NOT A LAB REPORT

Learn the parts of a COA

Choose any row to explore its meaning.

Identity

Does the tested material match the intended molecule? An identity result does not establish how much is present or that the sample is sterile.

FDA analytical-method validation guidance

Source checked November 12, 2026. This teaching specimen certifies no product.

Questions to take to the issuer

  • What exact sample and batch were tested?
  • Who issued the report, and can the issuer confirm it?
  • Which method establishes identity?
  • What does the reported purity measure?
  • Was actual content measured separately?
  • Which relevant properties were not tested?
  • When was the sample received, tested and reported?