Trade name(s) Thistrol,
Manufacturer(s) Nufarm
Formulation(s) 2 lb/gal soluble concentrate
Remarks A phenoxy compound used as a selective herbicide applied postemergence. Material is beta-oxidized to MCPA by susceptible plants.
Water solubility 44 ppm
Storage conditions Store above 32°F. If frozen, warm for several days and mix.
Acute toxicity LD50 - 700 mg/kg
Action in plant Mimics natural plant hormones.
Site of action Group 4: synthetic auxin
Chemical family Phenoxy acetic acid
Koc Average is 20 mL/g (estimated) at pH 7 for the Na salt