Trade name(s) DSMA Liquid

Manufacturer(s) Drexel Chemical Co., Monterey

Formulation(s) 64% soluble powder (100% hexahydrate), 3.6 and 7.2 lb/gal soluble concentrate

Remarks An organic, arsenical compound used as a selective contact herbicide applied postemergence. DSMA takes up moisture, so store in a dry place. Use a surfactant to ensure activity.

Water solubility Very soluble

Storage conditions Stable under moderate conditions.

Acute toxicity LD50 - 3,630 mg/kg

Action in plant Unknown

Site of action Group 17: not well understood

Chemical family Organoarsenical

Koc Average is 7000 mL/g (estimated)