S-(2-(ethylthio)ethyl) O,O-dimethyl phosphorodithioate; Ekatin; Ekatin aerosol; Intrathion; Intration; M 81; M 81 (pharmaceutical); O,O-Dimethyl S-(2-ethylthioethyl) Dithiophosphate; S-[2-(Ethylthio)ethyl] O,O-dimethyl Phosphorodithioate; Thiometon; Veltin