title: Ro 3-0422
text: # Ro 3-0422
  
  Ro 3-0422 is an extremely potent organophosphate acetylcholinesterase inhibitor. It is extremely toxic. The intravenous $LD_{50}$ is 20 μg/kg in mice. It is over 300 times more potent than neostigmine.
  
  