ChemDraw Pro

ChemDraw Pro adds features such as chemical query properties, the ability to create and edit templates and nicknames, Relative Stereochemistry, ISIS/Draw Compatibility, Expansion of Generic Structures, TLC Plate Tool, the new Freehand Pen Tool, Fragmentation Tools, PolymerDraw, ChemProp, Structure Cleanup, calculation of Topological Polar Surface Area and the ability to read and write a wide variety of chemical file formats to ChemDraw Std.