Read the batch identity
Match the vial label, lot number, product name, and report date. A purity number is meaningful only when it belongs to the exact material received.
Understand the method
Review the stated HPLC conditions, detector information, retention profile, and reporting convention. Mass spectrometry can provide complementary evidence of molecular identity.
Keep the record
Store the COA with the receiving and inventory record. If a label, lot, appearance, or document does not agree, pause the work and contact the supplier before use.
Research use only: This guide is educational. RetraLabs does not provide medical, dosing, administration, or treatment advice.