Note: it's free for academia only and you will need to register.
To get MarvinBeans, go to https://www.chemaxon.com/ and register as an academic. Then go to http://www.chemaxon.com/download/marvin-suite/ and download the 64 bit linux installer with jre.
Presumable you can install it by doing
in the download directory.
Once it's installed create a file called ~/.local/share/applications/marvinsketch.desktop:
[Desktop Entry] Name=MarvinSketch GenericName=MarvinSketch Comment=Software for drawing molecules Exec=sh /home/me/ChemAxon/MarvinBeans/MarvinSketch Terminal=false Type=Application Categories=Science Version=6.1
You should now be able to find it in GNOME 3.
There are a lot of similarities between ISISDraw and MarvinSketch -- and that's a good thing since it allows people like myself to draw molecules quickly without thinking too much about it.
|A Blank slate|
|Running Chem Inspector|
|It didn't like my wedges|
|I turned the structure into 3D and rotated it|