Start with the batch.

A certificate is meaningful only when it matches the compound and batch you are reviewing. Check the vial label against the document title, batch identifier, and test date. Confirm that the document is a genuine laboratory report rather than a development sample or a generic product illustration.

Read the methods and results together.

Purity and identity answer different questions. Review the reported HPLC result, method information, and identity result with your laboratory requirements. A percentage alone does not establish suitability, safety, or experimental performance.

Keep the reference with the order.

Use the COA Library to find a matching batch. Keep its reference with your laboratory receiving record. If the document is missing or does not match, ask the research desk before using the material.

For laboratory research use only. Not for human or veterinary use.

Key terms

GLOSSARY · 4
HPLC
High-performance liquid chromatography. A method used to separate components of a sample.
IDENTITY
Evidence that the material matches the expected compound. Review the method and result with the batch documentation.
LYOPHILIZED
Freeze-dried material. Handling and storage follow the validated laboratory protocol.
BATCH
The lot reference connecting the vial, documentation and laboratory receiving record.

Was this guide useful?