A process of synthesising flumetralin, and a formulation thereof, are disclosed. Said process broadly comprises two steps: mixing 1-chloro-2-(chloromethyl)-3-fluorobenzene with an aqueous ethanamine solution, to obtain N-(2-chloro-6-fluorobenzyl) ethanamine; and mixing 4-chloro-3,5-dinitrobenzotrifluoride with the N...