C₁₃H₁₀BrCl₂O₂PS A white solid with a melting point of 70.2– 70.6_C; slight solubility in water; used as an insecticide on vegetables, fruit, turf, and ornamentals. Also known as O-(4-bromo-2,5-dichlorophenyl) O-methyl phenylphosphorothioate.