Methylfluorophosphonylcholine
Methylfluorophosphonylcholine (MFPCh) is an extremely toxic chemical compound related to the G-series nerve agents.It is an extremely potent acetylcholinesterase inhibitor which is around 100 times more potent than sarin at inhibiting acetylcholinesterase in vitro,[2] and around 10 times more potent in vivo, depending on route of administration and animal species tested.[2][4][5] MFPCh also acts directly on the acetylcholine receptors.[6] MFPCh is a relatively unstable compound and degrades rapidly in storage, so despite its enhanced toxicity it was not deemed suitable to be weaponised for military use.[7] This article about an organic compound is a stub.