338 Database entries


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OS: Linux, Windows, Mac

License: Freeware


* bond-by-bond drawing
* bond lenght and angle restrictions to assist with the drawing
* ready to use templates of common rings
* ability to expand common groups from abbreviated to structural form
* Support for linear formulas (such as -CH2CH(COOCH3)2)
* radicals, charges...
* arrows (several types - normal, retro, equilibrium, etc.)
* rich text
* color support
* simple vector graphics (rectangles, circles, polygons etc.)


* unlimited undo and redo capabilities
* aligning
* scaling
* rotation (2D, 3D)
* aligning of molecules so that particular bond is horizontal/vertical
* rotation of molecular fragments around bonds (conformation changes)
* definition of personal preferred drawing style (bond lenghts, widths, colors...)


* full export to SVG (native data are transparently embedded into SVG file)
* full export to OpenOffice Draw format
* full export to ODF (OpenOffice 2.0) format
* full export to Encapsulated PostScript
* full export to PDF
* full export to PNG (if pycairo is installed, available in Windows binary build)
* basic support for both CML1 and CML2
* Molfiles
* generation of SMILES


* basic support for both CML1 and CML2
* Molfiles
* SMILES (subset)
* INChI (subset)

Other features

* localization support (currently English, French, Czech, Polish, German and Traditional Chinese translations are available)
* native format is XML based
* validity checking of drawn structures
* support for user written plugins
* support for user written batch scripts
* searching for BKChem files containing specified molecules or molecule fragment