How to read a certificate of analysis (COA)

A COA summarizes batch testing for identity, purity, and sometimes residual solvent classes depending on the panel selected by the laboratory.

Typical sections

• Identification: confirms the intended primary sequence or molecular signature.
• Purity: chromatographic purity as a percentage with method noted.
• Appearance: physical description of the received material.
• Storage: recommendations for lyophilized stability windows.

Batch matching

Always verify the batch number printed on the label against the COA filename and report body.

Research use only

For research purposes only. Not for human consumption. These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease.

For laboratory research use only. Not for human consumption.