Clodinafop-propargyl (Standard) is the standard substance of Clodinafop-propargyl, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. Clodinafop-propargyl, a prominent member of aryloxyphenoxy-propionate herbicides, is employed for postemergence management of annual grasses in cereals, such as Avena, Lolium, Setaria, Phalaris, and Alopecurus spp.