RESEARCH RESOURCES
Guides for reading the evidence.
Practical explainers on certificates of analysis, analytical methods and lot traceability. Educational content for laboratory research only.
GUIDE · 7 MIN READ
How to read a peptide Certificate of Analysis
A field-by-field guide to peptide COAs: identity, HPLC purity, peptide content, counterions and the red flags that mean a report shouldn’t be trusted.
Read the guide →GUIDE · 6 MIN READWhat HPLC purity does—and doesn’t—tell you
HPLC purity is the most quoted number on a peptide COA. Here is what it actually measures, why it depends on the method, and what it can’t tell you about a vial.
Read the guide →GUIDE · 5 MIN READUnderstanding peptide lot numbers and traceability
Why the lot number is the most important thing on a peptide vial, how traceability works from synthesis to label, and what to record in your lab notebook.
Read the guide →Looking for quick answers?
Storage, shipping, payment and research-only supply questions are covered in our FAQ. Supplier reports are in the COA library.