Search For Certificate of Analysis Search for Certificate of Analysis Lot# Enter the lot number for the Certificate of Analysis you wish to download. You may find the lot information on the side of the product box, packing list or invoice. To retrieve the lot number online, visit the Customer Center in the My Account area of our website. Select "See All Transactions" from the "Billing" column, then select the date of the invoice. If you do not know the invoice number, the PO # is visible on the same line to assist you. You will find the lot number(s) listed for each item on the invoice (note this is not visible on the sales order). Should you have any questions or if you do not have access to the Customer Center, please contact email@example.com and we will give you permission. Please do not register as a new account as it only creates duplicates and you will be unable to view existing account information.