XDrawChem is a free software program for drawing chemical structural formulas, available for Unix and Mac OS. It is distributed under the GNU GPL. In Microsoft Windows...
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xdrawchem is a free software program for drawing chemical structural formulas, available for unix and mac os. it is distributed under the gnu gpl. in microsoft windows this program is called windrawchem.major features fixed length and fixed angle drawing automatic alignment of figures detection of structures, text, and arrows, and their automatic placement can automatically draw rings and other structures has all standard amino acids and nucleic acids in a builtin library retrieval of structures from a network database based on cas number, formula, or name retrieval of information on a molecule based on a drawing symbols such as partial charge and radicals reading mdl molfiles, cml (chemical markup language), chemdraw binary format, chemdraw xml text format writing mdl molfiles, cml, chemdraw xml text format integration with openbabel, allowing xdrawchem to read and write over 20 different chemical file formats. image export in portable network graphics (png), windows bitmap, encapsulated postscript (eps), and scalable vector graphics (svg) 3d structure generation with the help of the external program build3d simple spectra predictions, including 13cnmr, 1hnmr (based on additive rules and functional group lookup methods), and ir simple property estimation, including pka, octanolwater partition coefficient, and gasphase enthalpy change.
Avogadro is a free, fantastically easy to use molecule editor. Because this editor is cross platform and light on computer resources, you know you can run it when and where you need it.
Marvin is a great alternative to the subscription based ChemDraw by CambridgeSoft. It is a collection of tools for drawing, displaying and characterizing chemical structures, substructures and reactions.
ACD/ChemSketch is a chemically intelligent drawing interface that allows you to draw almost any chemical structure including organics, organometallics, polymers, and Markush structures.
BKChem is a free (as in free software :o) chemical drawing program. It was conceived and written by Beda Kosata and is currently maintained by Reinis Danne. BKChem is written in Python, an interpreted and very nice programming language.
Ghemical is computational chemistry package, which is licensed under GNU GPL . The ghemical authors are listed here . Ghemical is implemented using the C++...
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