Trade name(s) Defendor and ingredient in Orion, GoldSky, FirstStep, and Spitfire
Manufacturer(s) Corteva, Syngenta
Formulation(s) 0.42 lb/gal emulsifiable concentrate and packaged with other herbicides
Remarks Broadleaf herbicide used in cereals for broadleaf weed control.
Water solubility 84 ppm at pH 5, 6360 ppm at pH 7, and 94,200 ppm at pH 9
Storage conditions Not available
Acute toxicity LD50 - greater than 6,000 mg/kg
Action in plant Inhibits acetolactate synthase (ALS) enzyme
Site of action Group 2: acetolactate synthase inhibitor
Chemical family Sulfonanalide