ACD/ChemSketch is described as 'Chemically intelligent drawing interface that allows you to draw almost any chemical structure including organics, organometallics, polymers, and Markush structures. Use it to produce professional looking structures and diagrams for reports and publications' and is a digital painting tool in the education & reference category. There are more than 10 alternatives to ACD/ChemSketch for a variety of platforms, including Windows, Linux, Mac, Android and iPhone apps. The best ACD/ChemSketch alternative is Chemaxon Marvin, which is free. Other great apps like ACD/ChemSketch are ChemDraw, Avogadro, ChemDoodle and JChemPaint.
MollyCule is a completely free Open Source Chemistry visualisation program for MacOS, Linux and Windows. MollyCule is designed to be a nice, easy to use program to help ordinary people who want to explore Chemistry.
Cool Chemistry Tool - educational app for Students. Chemist will help you in chemical tasks! Use the Periodic Table just like a computer keyboard. With the Chemist you will learn everything you need to know about the elements, compounds and chemical reactions.
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.
The Gnome Chemistry Utils include six chemistry related programs:
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