How we test.
A research result is only as good as the material underneath it. That's why every lot we release carries a complete analytical record: measured purity, confirmed identity, screened endotoxin and verified fill quantity.
Specifications live on the vial itself — purity, quantity assay, lot number, CAS identity, manufacture and expiry dates — and the full certificate of analysis is one email away for any lot we have ever shipped.
Four methods, every lot.
Reverse-phase high-performance liquid chromatography quantifies the principal peak against total signal. The measured value — not a nominal claim — is printed on every label.
Liquid chromatography–mass spectrometry confirms the observed molecular mass against the theoretical mass of the sequence before a lot can be released.
Limulus amebocyte lysate testing screens every batch. Release requires endotoxin below 0.5 EU/mg so downstream assays start clean.
Fill quantity is verified by weight and reported as the quantity assay figure on the label, so reconstitution math starts from a real number.
Certificates of analysis, on request.
Email the lot number printed on your vial and we'll return the certificate of analysis — chromatograms included — within one business day.