Identity
Confirmation that the material is what it claims to be, by the appropriate identification method.
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Documentation
Certificate of Analysis (CoA)
A Certificate of Analysis is the batch-specific record that shows how a produced lot actually tested against its agreed specification. It is the single document a quality team relies on to release, or reject, an incoming shipment, and the reason "trust us" is never enough on its own.
What a Certificate of Analysis contains
The product name and the batch or lot number it applies to
Manufacturing date and, where relevant, an expiry or retest date
Each specification parameter, its acceptance limit and the actual measured result
The test method used for each result
Release status and the authorised signatory
What a batch is typically tested for
Assay / content
The measured level of the declared active(s), usually by HPLC or an equivalent validated method.
Physical attributes
Appearance, plus format-specific checks such as weight, disintegration or fill.
Heavy metals
Lead, arsenic, cadmium and mercury against defined limits, typically by ICP-MS.
Microbiology
Total counts plus specified organisms (for example E. coli, Salmonella) within microbial limits.
Moisture / loss on drying
Where moisture is relevant to the specification or to stability.
When you get it
A Certificate of Analysis is issued for every batch we release and travels with the shipment, so each lot can be checked, line by line, against the specification your team agreed.