CAS SciFinder system requirements and recommendations

To ensure the best CAS SciFinder experience, and to conform with the most recent Internet security standards, use the latest recommended web browser technology. (Updated August 2023)

Browser Recommendations

CAS SciFinder is designed to work on Google Chrome, Microsoft Edge, Firefox, and Safari. We recommend only using versions that are fully supported by the browser vendors.

Structure Editor Requirements

CAS SciFinder users have two options for structure drawing: ChemDoodle and CASDraw.

Meeting the basic browser and operating systems requirements outlined above, and having JavaScript and cookies enabled are sufficient to use these editors. A Java plug-in is not required.

Note: iOS 10.3 with iCloud enabled is required for drawing package file import/export.

Internet Connection Requirements

Check with your organization's Site Administrator, Key Contact or help desk before changing any settings to conform to these requirements.

  • SSL (https) connection on port 443 to scifinder-n.cas.org.
  • https connection on port 80 to chemport.cas.org for full-text linking

Additional Recommendations and Requirements

  • JavaScript and cookies must be enabled.
  • Add https://scifinder-n.cas.org to your browser’s "Trusted Sites" and Pop-up blocker Exceptions lists.
  • A PDF reader is required for exporting and printing SciFinder answers and other information. Adobe Reader can be used with Mac or Windows computers. Preview is a free viewer provided with Mac OS X.
  • Appropriate ActiveX and plug-in permissions are required for Internet Explorer