gchempaint(1) on Linux
The text 4267665d3f71, as Debian 7 (Wheezy), Debian 6.0 (Squeeze) shipped it.
2D chemical structures editor for the GNOME2 desktop
Flags it lists
-
--edit-residue -
--full-screen -
--help -
--maximize -
--version -
-? -
-F -
-M -
-e -
-v