What backs a compound before it reaches your lab — and how to verify it yourself.
A Certificate of Analysis, per lot
Every lot ships with its own COA reporting identity and purity by HPLC, mass spec confirmation, sequence verification, and endotoxin screening — figures for that exact batch, not a brand-wide average.
Independent, third-party testing
Testing is performed by independent, U.S.-based laboratories. We do not publish in-house results, so the numbers on your COA come from a lab with no stake in the outcome.
Retained samples, re-verifiable on request
A retention sample from every lot is securely stored after shipment, so any batch you’ve purchased can be re-tested against its original certificate.
Structural references
Each product page lists the compound’s CAS number, molecular weight, and formula, with a link out to its PubChem record for independent verification — the same structural data a lab would use to confirm identity before running an assay.