Group 1 herbicides

chemical compound

Clethodim is an herbicide of the cyclohexanedione family. It is used to control grasses, especially annual ryegrass (Lolium rigidum). Although impure samples appear yellowish, the compound is colorless.

Butroxydim is a chemical used as a herbicide. It is a group A herbicide used to kill grass weeds in a range of broadacre crops. Structurally related herbicides against grasses are alloxydim, sethoxydim, clethodim, and cycloxydim.