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Library Research Guides

Cambridge Structural Database

A powerful and flexible resource to discover the knowledge contained within more than 500,000 crystal structures.

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Yulia Sevryugina's picture
Yulia Sevryugina
3162 Shapiro Library,
919 S. University Ave., Ann Arbor, MI, 48109-1185
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Access to Cambridge Structural Database

Cambridge Structural Database (CSD) is a world wide repository of small molecule crystal structures hosted by Cambridge Crystallographic Data Center (CCDC). University of Michigan has unlimited site license to access CSD. You may access the database via either of the following two means. 

1. WebCSD - the online portal to the CSD (Click here to access WebCSD)

(NOTE: as of April 2017, the only Web browsers that are fully compatible with WebCSD are Internet Explorer v.6.0 or later and Safari v.4.0 or later, due to WebCSD's reliance on Java applets for structure searching.  If you prefer not to use either of these browsers, we recommend that you install CSDS on your local computer as described below. CCDC reports that they will remove the reliance on Java in WebCSD 2.0; no release date is yet available.)

2. Install Cambridge Structural Database System (CSDS) on your own computer.

Two Options to Download

  • Option 1: Request links to download the software at: You will need our site number and confirmation code, and your email address. Once you submit the request successfully, an email with the download links will be sent to you. (Be sure to check your Spam folder.) Follow the links and instructions in the email to download and install the software appropriate to your operating system. Please contact the Chemistry Librarian if you encounter an error message.
  • Option 2: Follow links in the Table below to the Box folder containing the software. Click on "Continue" under "Log in: Part of University of Michigan", login with your unique name and UMICH password, and download the Cambridge Structural Database System 2017 Release for your operating system. 

Note: You will need the Site No. and Confirmation Code to register for the system after it is installed. Start Mercury or ConQuest or Mogul to register.  Please read the release_install.pdf document after you download the software for troubleshooting problems during installation. 

The availability of the CSDS for different operating systems is explained in the box below.

The difference between WebCSD and the CSDS client access is explained in the tab WebCSD and CSDS.

Availability of CSDS for different operating systems

The Cambridge Structural Database System 2017 - Enterprise edition contains the CSD-System, CSD-Materials, CSD-Discovery. Individual components are listed below. Not all components are available for all operating systems.


Windows MacOSX Linux

Contents: ConQuest 1.19, Mercury 3.9, enCIFer 1.5.2, PreQuest, Mogul 1.7.2, IsoStar 2.2.4 client, Conformer Generator 1.1, Hermes 1.8.2, GOLD 5.5, SuperStar 2.1.4, DASH 3.3.6, Relibase, CSD Python API, and all database files

Download .zip file and instructions for Windows 7/8 and 10, Windows Vista, or Windows XP .

Contents: ConQuest 1.19, Mercury 3.9, enCIFer 1.5.2, Mogul 1.7.2, IsoStar 2.2.4 client, Conformer Generator 1.1, Hermes 1.8.2, GOLD 5.5, Relibase, CSD Python API, and all database files

Download .dmg file and instructions for Mac OS X 10.8, 10.9, 10.10, and 10.11.

Contents: ConQuest 1.19, Mercury 3.9, enCIFer 1.5.2, PreQuest (32-bit only), Mogul 1.7.2, IsoStar 2.2.4 client, Conformer Generator 1.1, Hermes 1.8.2, GOLD 5.5, SuperStar 2.1.4, Relibase, CSD Python API, and server software (32-bit only) for Linux, and all database files.

Download 32-bit and 64-bit installation files and instructions for Linux. (See the release_install.pdf for Linux system supported.)



For downloading from M+Box Folder 

  • Use IE 9 or later, the current version of Firefox or Google Chrome. Older browsers may NOT work.
  • These large files (over 6 Gb) may take between 15 min and several hours to download, depending on the speed of your Internet connection.
  • Following the links in the table above, click on "Continue" button under "Login: Part of University of Michigan" and log in with your unique name and password.

Updating to Mac OS X 10.10 can cause an existing XQuartz installation to become corrupted. For OS X 10.8 and later a suitable X11 server can be downloaded from

Find more troubleshooting tips on the CCDC Support page.