You can download Chemistry 4D 8.0.2 from our software library for free. The program lies within Education Tools, more precisely Science Tools. This software was originally developed by CBIS - Chemical and Biological Information Systems. You can install Chemistry 4D on Windows XP/Vista/7/8 32-bit. The most popular version among Chemistry 4D users is 8.0.
From the developer:
Chemistry 4-D Draw is a next-generation chemistry program combining the most advanced technologies in structure drawing.
You may want to check out more software, such as 4D, 4D Product Line or 4D VB Light for SketchUp, which might be related to Chemistry 4D.