BKChem

BKChem

BKChem v0.11.6 running on Mac OS X 10.4.8
Original author(s)	Beda Kosata
Developer(s)	Beda Kosata
Stable release	0.13.0 / February 23, 2009 (2009-02-23)
Preview release	0.14.0-pre2 / August 12, 2010 (2010-08-12)
Written in	Python, Tcl/Tk
Operating system	Windows, OS X, POSIX
Platform	Cross-platform
Type	Molecule editor
License	GNU GPL
Website	bkchem.zirael.org

BKChem is a free 2D molecule editor written in Python by Beda Kosata. As such, it is largely platform-independent. It uses Tk via Tkinter.

Major features

Structure drawn originally with BKChem
Redrawn because of W3C-invalidity (with Inkscape)

Drawing:

• Bond by bond drawing
• Straight and curved arrows
• Radicals, lone pairs and charges
• Templates for drawing common structure (users can create their own)
• Simple vector graphics using Sodipodi-Inkscape

Editing:

• Unlimited undo/redo capabilities
• Aligning, scaling and rotation (2D and 3D)

Exports to:

• SVG
• OpenOffice Draw
• PDF
• EPS (Encapsulated Postscript)
• Molfile
• PNG (with Pycairo installed)
• SMILES (Stereochemistry is not supported)
• InChI (with InChI program)

Imports:

• Molfile
• SMILES (Stereochemistry is not supported)
• InChI (Stereochemistry is not supported)

Other features:

• Searching BKChem files for a molecule or a fragment of a molecule
• Localization support (currently English, French, Czech and Polish translations are available)
• Support for user written plugins
• Validity checking
• Can be run from source with Python

External links

• BKChem official website