A-232

**Semantic type:** Hazardous or Poisonous Substance

**Definition:** A carboxamidine compound and organophosphate acetylcholinesterase inhibitor that is used as a chemical weapon. It is one of a class of binary nerve agents, called Novichok nerve agents, that was first developed by the former Soviet Union in the 1970s.

**Synonyms:** - A232 - Novichok-5