1) Obsolete pesticide 
Dimefox is an organophosphate pesticide. A colourless liquid with a fishy odour. The structure consists of a central phosphorus atom, which is connected to an oxygen by a double bond. It also binds to a fluoride as a leaving group which is biologically reactive and two dimethyl amine as lipophilic groups. Dimefox was used as pesticide, but has bee...