ChemOffice Professional 19.1 for Windows and Macintosh


Individual users can download the software via this link:

Activation key: Please send an email from your IISc E-Mail ID to,

Registration and activation will be required for individuals who choose to install the software for home, office, or personal use. For more details regarding registration and activation, please follow the link:

New users will be downloading version 19.1. Those who are currently using version 11 through 15 need only "reactivate" to continue using these versions, or they can re-download to get version 19.1. To re-download, go to the link above and follow the instructions to re-download. To reactivate, click "Reactivate" on the Help menu then put in your serial number (activation key) given above.

New users will only have access to the most recent version of the software.

To access individual edition of ChemDraw Cloud/Signals Notebook, please refer to the document via the link:

NOTE: You must have an email account in the IISc domain to download and activate this product.

For system requirements, please follow the link:

Should you have any issues in using the Chemoffice, please get in touch with Professor Santanu Mukherjee ( or Francis Jayakanth (

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