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Formula | C20H29NO3 |
Molar mass | 331.456 g·mol−1 |
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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).[1][2] However unlike QNB, EA-3167 was never weaponized or manufactured in bulk.
Stereoisomers of EA-3167 have also been synthesized under the codename HL-031120.[3]
Psychedelics (5-HT2A agonists) |
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Dissociatives (NMDAR antagonists) |
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Deliriants (mAChR antagonists) |
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Others |
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mAChRs |
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