Lab documentation
Peptide Certificates of Analysis
Looking for research peptides with COAs? Browse the published certificates as issued by the testing laboratory. Match the compound and batch details on a report to the research material you are evaluating, and read the reported methods and results together. For an overview, see our peptide lab testing and quality documentation.
How to read a peptide COA
- Match the sample. Check the compound name, batch or lot identifier, report date and testing laboratory.
- Read the HPLC result. The chromatogram and stated method provide context for the reported purity; a percentage alone does not describe every possible impurity.
- Read the mass spectrum. Compare the measured mass with the expected mass as part of identity assessment. This is a different question from HPLC purity.
For a longer explanation, read our peptide COA research guide. The reports below are for laboratory research materials, not evidence of suitability for human use.
27 certificates