Enter the batch number printed on the aluminium crimp cap. The lookup returns the published certificate of analysis, the synthesis date, the analytical lab, and the date the certificate was published. If the batch number does not match an entry in the archive, the vial is not from Cresten.
Six or seven digit batch numbers. The number is also encoded in the QR code on the vial cap.
The certificate of analysis for the batch. Compound name, batch number, date of analysis, HPLC purity, LC-MS identity confirmation, endotoxin level, microbial bioburden, analyst signature. Downloadable as a PDF, accessible by batch lookup.
A printed copy of the same certificate of analysis is enclosed in every shipment. The batch number on the printed certificate, the batch number on the vial label, and the batch number on the public verification page are the same. The buyer compares the three to confirm the shipment matches the published record.
The permanent verification page for the batch. The page lives at crestenlabs.eu/verify/{batch}, never moves, never deletes, indexable by search engines. The page includes the certificate, the chromatogram detail, the analyst signature, and a link back to the compound’s product page.
This site presents technical and editorial content on research compounds. Compounds are supplied for in-vitro and preclinical research only, not for human or veterinary use. Access is restricted to adults of confirmed age.