An organophosphorous insecticide available only in mixtures in the form of concentrated emulsions. Also used therapeutically as an external insecticide.
For etiology, clinical features, lesions, treatment and laboratory investigations, see Organophosphorus compounds .

Oral doses in mg/kg or concentrations in mg/l:
LD50 rats 3750 - 7700
  rabbits 720
  chickens 9700
MTD dogs 350
  cats 500
  sheep 160
  cattle 400
LC50 (48 h) fish 0.05 0.5