Science & Quality
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How to Read a Peptide Certificate of Analysis
Connect the report to the vial
A certificate of analysis is useful only when you can connect it to the material in your laboratory. Begin by matching the product identity and batch number against the label and order records.
Check the report date, issuing laboratory and sample description. If a detail is missing or inconsistent, request clarification before relying on the document.
Understand what was measured
Look for the analytical method, the reported result and the acceptance criteria. Purity, identity and quantity answer different questions and should not be treated as equivalent.
An HPLC purity result describes the analyzed sample under a particular method. It does not, by itself, establish sterility, biological activity or suitability for clinical use.
Read the supporting information
Review chromatograms and other supporting data when available. Method details, integration and sample handling influence how confidently a reported number can be interpreted.
Avoid comparing percentages across reports without checking whether the methods and reporting conventions are comparable.
Keep a traceable record
Save the batch-specific report with receipt records and experimental notes. That connection supports investigation of unexpected results and reproducibility.
ZYNOR compounds remain for in-vitro laboratory research only. A COA does not authorize human or animal use.
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