BKchem is a free chemical drawing program. BKchem was concieved and written by Beda Kosata.
BKchem is written in Python, an interpreted and very nice programming language.
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Here are some key features of "BKchem":
Drawing:
· 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
· radicals, charges...
· arrows
· rich text
· color support
· simple vector graphics (rectangles, circles, polygons etc.)
Editing:
· 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...)
Export:
· full export to SVG (native data are transparently embedded into SVG file)
· full export to OpenOffice Draw format
· full export to Encapsulated PostScript
· basic support for both CML1 and CML2
· Molfiles
· generation of SMILES
Import:
· basic support for both CML1 and CML2
· Molfiles
· SMILES (subset)
· INChI (subset)
Other features:
· localization support (currently English, French, Czech and Polish translations are available)
· native format is XML based
· validity checking of drawn structures
What's New in This Release: [ read full changelog ]
· This release includes one fix in InChIKey generation and an enhancement of drawing of 3D rotated molecules.
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