Reactivating will extend your current software's license for the next license year. You need to reactivate with your existing serial number.
In order to maintain your working copy of ChemDraw Ultra, please follow the steps below. You will be able to see the details and the serial number.
Look for an email from You will need this to complete the installation. The Serial Number and Registration Code (MACs only) will be emailed to you immediately.Choose the appropriate link (PC or MAC version) and download.This will take you to a page of links to download the latest software version. See Accessing Your Software in the middle of the screen and click Download Site Subscription Software.Go to My Site Subscription (right hand side under Services).Older Version & Related Software Downloads.
