Analytical standards
Lab testing and Certificates of Analysis
A vial is only as good as the paperwork that describes it. Production lots are analyzed for purity and identity, and the results are recorded on a lot-specific Certificate of Analysis available on request.
The analytical panel
Purity by HPLC
High-performance liquid chromatography separates the target peptide from related substances, so purity is measured rather than asserted.
Identity by mass spectrometry
Mass spectrometry confirms the molecular mass matches the expected sequence — that the vial contains what the label says.
Handling and storage
Storage conditions for the specific lot are stated on its Certificate of Analysis, because they are what keeps the material usable.
What a Certificate of Analysis covers
A Certificate of Analysis reports the analytical results for one identified production lot. It typically states the compound, the lot reference, the analytical methods used, the results obtained, and the recommended storage conditions.
A COA applies only to the lot it identifies.
It is not a general statement about the compound, and it is not transferable to a different lot. If you need documentation for the material you actually received, ask for the COA matching your lot reference. Independent verification remains the responsibility of the purchaser.
Requesting a COA
Ask when you submit an inquiry, or contact us with your order number and lot reference and we will send the matching certificate.
A searchable COA library is not yet published on this site. In the meantime a representative will provide documentation directly.
Ask about documentation
Tell us which compound you need and we will confirm what analytical documentation is available before you commit.