CAS Number 54390-94-2
PubChem (CID) 171342
ChemSpider 149791
Chemical and physical data
Formula C18H25NO3
Molar mass 303.395 g/mol
3D model (Jmol) Interactive image

EA-3580 is a potent anticholinergic deliriant drug with a fairly long duration of action, related to the chemical warfare agent 3-Quinuclidinyl benzilate (QNB). It was developed under contract to Edgewood Arsenal during the 1960s as part of the US military chemical weapons program, during research to improve upon the properties of earlier agents such as QNB.

EA-3580 is closely related to the similar compound EA-3443, and has similar potency and high central to peripheral effects ratio, but with a duration of action around half as long, although effects of EA-3580 can still persist for 24 hours or more following high doses.[1][2]

See also


  1. Possible Long-Term Health Effects of Short-Term Exposure to Chemical Agents, Volume 1 (1982). Commission on Life Sciences. The National Academies Press. pp207-211.
  2. Ketchum JS. Chemical Warfare Secrets Almost Forgotton. A Personal Story of Medical Testing of Army Volunteers with Incapacitating Chemical Agents During the Cold War. ChemBooks Inc 2006. ISBN 978-1-4243-0080-8

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