Tested before it’s listed.
Every lot is assayed by an independent laboratory before it reaches the catalog — purity by reverse-phase HPLC, identity by mass spectrometry, and a unique lot ID linked to its certificate.
Three checks, one certificate, on every single lot.
Each checkpoint is documented, independently verified, and archived against the lot you receive.
Third-party tested
Every lot is assayed at an accredited independent laboratory — reverse-phase HPLC for purity, mass spectrometry for identity. We never grade our own work.
View certificates →99%+ documented purity
The purity value is verified before a compound is ever listed, then printed on the certificate that ships with it. No claim without a result behind it.
Browse the catalog →A COA with every batch
Lot-traceable paperwork for the exact vial in your hand — pull the certificate for any order, any time, from the public archive.
Open the COA lookup →If the number doesn’t match, we make it right.
Send any lot to the independent laboratory of your choice. If the measured purity doesn’t match the COA we issued, we refund or replace the order in full. That’s what documenting purity means to us — the claim is only as good as the paper behind it.