Version 17 and higher

Download the installation package of the required version and install the software (see the links below). Register (use IOCB e-mail address for registration), or log in if you are registered. Click on the selected version of the sofware on the Order History page and get the Activation Code that you will use during the first ChemOffice launch.

• ChemOffice Professional + Cloud (23.1.2) (size 1270 MB) for Windows.
• ChemDraw Professional (23.1.2) (size 201 MB) for MAC.
• ChemOffice Professional (21.0) (size 635 MB) for Windows.
• ChemOffice Professional (21.0) (size 191 MB) for MAC.
• ChemOffice Professional (20.0) (size 500 MB) for Windows.
• ChemOffice Professional (20.0) (size 70.4 MB) for MAC.
• ChemOffice Professional (19.0) (size 496 MB) for Windows.
• ChemOffice Professional (19.0) (size 68 MB) for MAC.
• ChemOffice Professional (18.2) (size 495 MB) for Windows.
• ChemOffice Professional (18.2) (size 64 MB) for MAC.
• ChemOffice Professional (18.1) (size 507 MB) for Windows.
• ChemOffice Professional (18.1) (size 65 MB) for MAC.
• ChemOffice Professional (18) (size 511 MB) for Windows.
• ChemOffice Professional (18) (size 63 MB) for MAC.
• ChemOffice Professional (17.1) (size 362 MB) for Windows.
• ChemOffice Professional (17.11) (size 57 MB) for MAC.

Older versions (11-16)

To get a license number please register and provide your Institute e-mail address. On the Services > Site Subscription page You can select and dowloand an actual version of ChemOffice. After downloading, You should get an e-mail containing the serial number for the downloaded installation pack. Use SN during the installation and select activation via internet. You can also enter the code to the program if it is already installed and the previous license code expired. Short instruction pdf describing the process is here (pdf).

• ChemOffice Professional (16.01) (size 364 MB) for Windows.
• ChemOffice Professional (16.01) (size 52 MB) for MAC.
• ChemOffice Professional (16.0) (size 366 MB) for Windows.
• ChemOffice Professional (16.0) (size 54 MB) for MAC.
• ChemOffice Professional (15.1) pro Windows.
• ChemOffice Professional (15.1) for MAC.
• ChemBioOffice Ultra (14.0) for Windows.
• ChemBioOffice Ultra (13.0) for Windows.
• ChemBioOffice Ultra 2010 (12.02) for Windows.
• ChemBioOffice Ultra 2010 (12) for Windows.
• COUltra100 (10).
• ChemBioOffice 2008 (11) for Windows (english version).