openbabel-gui software package provides Chemical toolbox utilities (graphical user interface), you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install openbabel-gui
openbabel-gui is installed in your system.
Make ensure the openbabel-gui package were installed using the commands given below,
$ sudo dpkg-query -l | grep openbabel-gui *
You will get with openbabel-gui package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Science |
| Package | openbabel-gui |
| Version | 2.3.2+dfsg-1.1 |
| Description | Chemical toolbox utilities (graphical user interface) |
| Sub Section | Science |