In the footer of the website under "Tools & Resources," select "Certificates of Analysis & Batch Data" and enter your Batch Number to download CofAs. You will be prompted to log in or register. For analytical reference standards that are not ISO accredited, a standard CofA will be sent in an auto-generated email once you enter the batch number and log in. You may also use the batch number to request available product inserts, QC sheets, data packs, and GC-MS data. If the CofA is unavailable, please contact our Technical Support staff at techserv@caymanchem.com for assistance.