Certificates of Analysis
Every batch is HPLC and MS analysed by accredited third-party laboratories. Browse our latest certificates — click any card to view it full size.
How to read a Certificate of Analysis
Lot number. Match this against the code printed on your vial. A certificate that does not match the vial in your hand tells you nothing about the material in it.
HPLC purity. The measured percentage of the target peptide in the sample by area under the chromatogram. This is the number that matters most for reproducibility.
Mass spectrometry. The observed molecular weight is compared to the theoretical weight calculated from the sequence. A match confirms you have the right molecule, not just a pure one.
Date of analysis. Analysis is performed on the finished batch, not on a historical reference sample.
Need a quote or a custom sequence?
Send us the sequence, quantity and purity you need. Our synthesis team replies within one hour on weekdays.
