ChemDraw, ChemBioOffice etc.

ChemDrawOffice Professional 19.0

A new version of ChemOffice is available (Ver. 19.0)


You can read about new functionalities here:

PerkinElmer / Cambridgesoft has introduced an online method to register/keep license updated via online registering in ’flexera’.


Follow the links provided under ‘Download’ (scroll down) to register/ install.

In this guide (updated 10 December 2019), you’ll find a detailed description and some troubleshooting hints

Version 17 – 18.1 can still be used, it’s not mandatory to update. However, if you are on a release smaller than ver. 17, you should update, since support is no longer available.


To download and use the software for ChemBioOffice Ultra you must be registered as a user at the Department of Chemistry with a mail account under the domain:


If you are a student and do not have one of these domains, then contact and we will see to it that you get a e-mail address. Send us an e-mail from your e-mail (due to verification issues - otherwise you won't get any response) with the following informations: 

  • Student registration number 
  • Name of the class you study at Department of Chemistry 


In case of any other problems, please contact Thomas Breitenbach by mail


Please note that downloading and installing the software may be a lengthy process.

Register via this link:

You will receive an email with download instructions. Please check your spamfolder in case you don't receive anything.