ethion

noun1

1. •
   An organophosphate insecticide, [(dethoxyphosphinothioylthio)methylthio]-diethoxy-thioxophosphorane, that is known to neutralise the neural enzyme acetylcholinesterase.

   • Ethion is a colorless to amber colored liquid. It is soluble in most organic solvents including kerosine, but sparingly soluble in water. Ethion is highly toxic to animals. — 1990