Quality
Tested, Documented, Traceable
Documentation is the difference between a research-grade compound and a question mark. Every lot in our catalog is supported by analytical data we can produce on request.
HPLC Purity
Reverse-phase high-performance liquid chromatography establishes peptide purity by area-percent. Our specification is ≥98% for most peptide products and ≥99% where stated on the product page.
Mass Spectrometry Identity
Electrospray-ionization mass spectrometry confirms molecular mass within tolerance of the theoretical molecular weight, verifying identity of the peptide.
Karl Fischer / Water Content
Where applicable, water content is measured to characterize lyophilized peptide salts and ensure consistent net-peptide mass per vial.
Lot Traceability
Every vial is labeled with a lot identifier that links back to its analytical record, manufacture date, and incoming inspection notes.
Requesting a COA
Certificates of Analysis are available for every active lot. Include the SKU and lot number from your shipping label when requesting one. We can deliver COAs in PDF by email, typically within one business day.
Request a COA