Assertion: sarin | /r/ObjectUse | used as a nerve agent
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text: Sarin is a phosphorus-containing organic chemical, C4H10FO2P, that is extremely toxic to human beings and is used as a nerve agent, attacking the nervous system by irreversibly inhibiting cholinesterase Sarin first appeared in 1938 when it was developed by German scientists as a pesticide before NATO adopted sarin as a standard chemical weapon in 1950.