Due to recent updates for several web browsers, Mac OS X, and Java, the Java-based Structure Editors used in SciFinder and Reaxys may not be functional. A list of current working configurations can be found here. We are working to restore functionality to library-maintained machines. If you are having problems using a Java-based Structure Editor on your personal computer, please check the link and verify your configuration matches one listed, and contact Donna Wrublewski (dtwrublewski AT library.caltech.edu) if you have additional questions or need further assistance. Thank you for your patience.