Excuse cross postings. ChemAxon's Marvin 5 and JChem 5 have been released, to download please visit: http://www.chemaxon.com/download.html Marvin 5 new feature thumbnail: * Completely re-factored; new customizable GUI with more professional default layout, ChemDraw and ISIS/Draw-like configuration options, drag and drop 'My Templates' toolbar. * Copy/paste live objects to Word, Excel, etc. (OLE). * New chemical features for drawing coordinative bonds and Markush features (variable attachment points, repeating groups). * New Calculator Plugins for IUPAC name generation and Markush enumeration. * Full listing of new Marvin features is here: http://www.chemaxon.com/marvin/index.html JChem 5 new feature thumbnail: * New table types for storing query substructures and Markush libraries. * JChem Cartridge has improved installation and major performance improvements. * Progressive return of database search results (very fast first results). * Support for coordination compound and Markush structure storage and search. * libMCS clustering supports much larger input sets (100,000+), more chemical features (ie keeping rings intact, etc), speed improvements, R-table visualization * Full listing of new JChem features is here: http://www.chemaxon.com/jchem/index.html Hope you enjoy the new features, we are looking forward to your feedback. Best regards Alex Alex Allardyce Dir. Marketing, ChemAxon