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Research Guides

ChemDraw Installation and Renewal

A how-to guide on installing the latest version of ChemDraw and how to renew each year in November.

FAQ and Troubleshooting

You should be able to install ChemDraw without difficulty, but sometimes things happen! Check out the FAQs below for common problems and suggestions for troubleshooting.

If you aren't able to find the answer to your question here, please contact Madeline Gerbig, Chemistry Librarian at You may be referred to Revvity Signals Informatics Support.

I forgot my password.

You can reset your password from the login page at by clicking Forgot Password?

I moved from a different institution.

If you were previously at another university where you had access to ChemDraw, you should be able to create a new login for the University of Toronto subscription using your new email address. Occasionally, you may still experience issues when activating the software. If so, please contact the Revvity Signals Informatics Support for help.

Where do I find the activation code? 

If you login to the Revvity Signals Site where you downloaded the software, there is an ORDER HISTORY option on the right hand side menu. follow that down to the current version (usually the one at the top) and it will give you the activation code. The code is the same for both PCs and Macs.

When I try to log in to the Revvity Signals Download Centre, I receive the message "Not able to initialize user. Please contact system administrator."

  1. If you haven't already, please make sure to select the New User tab and set up your password after registering. Your password must:
    • Be at least 8 characters in length
    • Contain at least 3 of the following:
      • Lowercase letters (a - z)
      • Uppercase letters (A - Z)
      • Numbers (0 - 9)
      • Special characters (!@#$%^&*)
  2. Copy and paste the Download Centre URL into your browser (rather than clicking on the link): Then complete the Sign Up / Log In process as usual. It may also help to try a different browser, or click your cookies/cache.

How do I search SciFinder-n from ChemDraw?

To set up your ChemDraw to connect to SciFinder-n at U of T, select your structure and open up the search by going to Add-ins > Search SciFinder-n from the menu along the top of your screen. Before running your search, click Proxy Settings and enter the following link in the box that appears:

Your ChemDraw is now set up to connect to our U of T SciFinder-n license! You will be asked to log in with your UTORid and password and your SciFinder-n credentials before proceeding to your search results in SciFinder. You may also receive a pop-up notification asking you to allow your browser to access ChemDraw. Click Open ChemDraw to proceed.

How do I get help from Revvity Signals?

  1. Visit the Informatics Support Requests Page.
  2. Complete the form to submit a ticket. You will usually receive a response by email within 48 hours. Support staff may suggest setting up a web meeting so that they can further investigate the issue on your device.

My license has expired or is going to expire soon.

Each year in October/November, the University of Toronto site license expires and needs to be renewed. When the license is renewed, you may need to update your activation code. Renewals are now happening automatically for most people. When this time comes, a notice will be distributed by email, as well as displayed on the Chemistry Library website and the ChemDraw page. Note: The renewal is typically completed a few days before the expiry date.

I'd like to download ChemDraw onto more than one device.

You can download ChemDraw multiple times with the same account. To do this, log into your account and follow the steps for installation and renewal.

I'd like to download ChemDraw onto a group of laboratory computers.

If you'd like to download and install ChemDraw for a large number of computers, please contact the Licensed Software Office at for instructions on how to complete bulk installation and activation.

Who manages the U of T ChemDraw license?

The U of T Licenced Software Office is now managing the site-wide subscription.