 EA-3148

EA-3148 (Substance 100A) is a "V-series" nerve agent related to the better-known compounds VX and VR.It was studied by both the US and Soviet chemical weapons programmes during the Cold War, and is notable as the only organophosphate nerve agent specifically identified in public domain sources as having a higher absolute potency as an acetylcholinesterase inhibitor than VX (around 50% more potent by weight).