parathion pesticide molecule. organophosphate insecticide, has also used as chemical weapon

parathion parathione ethyl diethyl organophosphate insecticide pesticide acaricide toxic poison poisonous spray food crops acetylcholinesterase paraoxon neurotoxin nervous chemical weapon carcinogen pollutant hazardous substance bees fish wildlife environment environmental hydrogen carbon oxygen nitrogen sulfur phosphorus molecule atoms atomic model molecular compound composition chemistry bond structure formula circle ring line drawing skeletal flat icon stylized style