A COA is only useful if you know how to read it. Here's a field-by-field guide to what belongs on a legitimate certificate.
A Certificate of Analysis is the document that turns a purity claim into verifiable evidence. Every batch we sell carries one, produced through independent third-party testing. Knowing how to read it lets you verify quality yourself rather than taking anyone's word for it.
What a Complete COA Contains
- Product name and the specific batch or lot number being certified.
- HPLC purity analysis, reported as a percentage with the accompanying chromatogram.
- Mass spectrometry data confirming the compound's molecular weight and identity.
- The testing date and the laboratory's accreditation information.
Batch Numbers Are the Key Detail
A COA is only meaningful if it corresponds to the batch in your hand. A certificate for a different lot tells you nothing about your specific material. This is why traceability matters: the batch number on your product should match the batch number on the certificate.
If you ever need the COA for a specific batch, you can request it from us directly with the batch number — we will send the matching certificate.
Red Flags
- A purity claim with no chromatogram to back it up.
- No batch number, or a certificate that can't be tied to your specific order.
- In-house testing only, with no independent, accredited laboratory named.
This article is provided for educational and research context only. All products referenced are intended strictly for laboratory and research use — not for human consumption, medical, veterinary, or household use.