Peptides MEX / Glossary
COA: what a certificate of analysis documents
A certificate of analysis is interpreted test by test within the scope of its identified sample.
Updated · Sources and editorial standards
Connecting the report to the sample
COA stands for Certificate of Analysis. A useful document identifies the material, batch, issuer, tests and results; acceptance criteria explain a conformity conclusion. ICH Q7 is a documentary reference for pharmaceutical ingredients, rather than accreditation of any catalog supplier.
What each test answers
Identity, purity, content and potency are different attributes. If a report provides only a chromatographic percentage, record that measurement without treating it as evidence of sterility or total mass. A report for another batch does not replace the one corresponding to the reviewed sample.
Questions about this reference
Sources and original reading
- FDA / ICH Q7: Good Manufacturing Practice Guidance for Active Pharmaceutical Ingredients
- FDA: Part IV — Analytical
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