How to read a Certificate of Analysis
A COA is only evidence if the batch numbers match, the laboratory is independent, and identity plus purity methods are present. This is a reading guide — not a downloadable stock PDF.
10 min read
What the certificate is for
A Certificate of Analysis is the lot’s analytical snapshot: compound identity and molecular weight; purity by reverse-phase HPLC with chromatogram; testing laboratory name and accreditation number; batch number, manufacture date and date tested; water content and residual solvents; retest or expiry date. If those elements are missing, treat the file as marketing until the record is completed.
The match test
A certificate is only meaningful if the batch number on the document matches the batch number on your vial and the testing laboratory is independent from the seller. Photograph the vial label when you request a record. Prime Labs does not publish a single decorative COA PDF for the whole catalog — official lot files are issued per batch through COA Verification or support.
How to request a lot file
Use the batch number printed on the vial. Open the product page or COA Verification to request or download the matching analytical record. If the number is not found, contact support@primelabs.bio with a photograph of the vial label.
Research-use framing
Prime Labs materials are supplied as laboratory reagents for research use only. They are not for human or veterinary use and are not intended to diagnose, treat, cure, or prevent any disease.
Certificate checklist
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Schematic illustration for education — not product photography or a lot certificate.