Documentation
Certificates of analysis
Analytical certificates are published by lot. Each record ties a specific batch to its reported purity and the laboratory that tested it.
Published certificates
0 records
No certificates published yet
Certificates are being compiled and will be published here by lot as they are released. Approved account holders can request the certificate for a specific lot in the meantime.
Request a certificateReading a certificate
- Lot
- Ties the certificate to the specific batch printed on the vial. A certificate for a different lot tells you nothing about the vial in your hand.
- Purity
- The percentage of the sample identified as the stated compound, usually by HPLC peak area.
- Method
- The analytical technique used. HPLC is standard for peptide identity and purity; mass spectrometry confirms molecular weight.
- Test date
- When the analysis was performed, not when the material was manufactured.
- Laboratory
- The facility that performed the analysis. Third-party testing means a laboratory independent of the supplier.
A longer walkthrough is in the research library.