|CompTox Dashboard (EPA)|
|Chemical and physical data|
|Molar mass||331.456 g·mol−1|
|3D model (JSmol)|
EA-3167 is a potent and long-lasting anticholinergic deliriant drug, 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, in an attempt to develop non-lethal incapacitating agents. EA-3167 has identical effects to QNB, but is even more potent and longer-lasting, with an effective dose when administered by injection of as little as 2.5 μg/kg (i.e. 0.2 milligrams for an 80 kg person), and a duration of 120–240 hours (5–10 days). However unlike QNB, EA-3167 was never weaponized or manufactured in bulk.
- Edgewood Arsenal human experiments
- N-Methyl-3-piperidyl benzilate
- N-Ethyl-3-piperidyl benzilate
- 3-Quinuclidinyl benzilate
- Wills H (1982). "Appendix I: Digest Report -- Anticholinergic Chemicals". In National Research Council (U.S.). Committee on Toxicology (ed.). Possible Long-Term Health Effects of Short-Term Exposure to Chemical Agents. 1. Washington, D.C.: National Academies Press. pp. 195–196. OCLC 35472774.
- Ketchum JS (2006). Chemical Warfare Secrets Almost Forgotten. A Personal Story of Medical Testing of Army Volunteers with Incapacitating Chemical Agents During the Cold War. ChemBooks. ISBN 978-1-4243-0080-8.
- Liu YM, Liu H, Zhong BH, Liu KL (2006). "Stereoselective Synthesis of the Optical Isomers of a New Muscarinic Receptor Antagonist, HL‐031120". Synthetic Communications. 36 (13): 1815–1822. doi:10.1080/00397910600602453. S2CID 96011273.