3-Quinuclidinyl benzilate

3-Quinuclidinyl benzilate
Bonding model
Bonding model
Ball and stick model
Ball and stick model
Names
IUPAC name
1-azabicyclo[2.2.2]octan-3-yl hydroxy(diphenyl)acetate
Other names
BZ
EA-2277
CS-4030
QNB
Identifiers
3D model (JSmol)
ChEMBL
ChemSpider
ECHA InfoCard 100.164.060 Edit this at Wikidata
MeSH Quinuclidinyl+benzilate
UNII
  • InChI=1S/C21H23NO3/c23-20(25-19-15-22-13-11-16(19)12-14-22)21(24,17-7-3-1-4-8-17)18-9-5-2-6-10-18/h1-10,16,19,24H,11-15H2 checkY
    Key: HGMITUYOCPPQLE-UHFFFAOYSA-N checkY
  • InChI=1/C21H23NO3/c23-20(25-19-15-22-13-11-16(19)12-14-22)21(24,17-7-3-1-4-8-17)18-9-5-2-6-10-18/h1-10,16,19,24H,11-15H2
    Key: HGMITUYOCPPQLE-UHFFFAOYAEb l
  • O=C(C(C1=CC=CC=C1)(C2=CC=CC=C2)O)OC3CN4CCC3CC4
Properties
C21H23NO3
Molar mass 337.419 g·mol−1
Appearance White crystalline powder
Melting point 164 to 165 °C (327 to 329 °F; 437 to 438 K)
Boiling point 322 °C (612 °F; 595 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
☒N verify (what is checkY☒N ?)

3-Quinuclidinyl benzilate (QNB) (IUPAC name 1-azabicyclo[2.2.2]octan-3-yl hydroxy(diphenyl)acetate; US Army code EA-2277; NATO code BZ; Soviet code Substance 78[1]) is an odorless and bitter-tasting military incapacitating agent.[2] BZ is an antagonist of muscarinic acetylcholine receptors whose structure is the ester of benzilic acid with an alcohol derived from quinuclidine.

  1. ^ Conant, Eve (22 November 2002). "More Questions Than Answers". Newsweek. Retrieved 15 April 2018.
  2. ^ QNB: Incapacitating Agent. Emergency Response Safety and Health Database. National Institute for Occupational Safety and Health. Accessed April 20, 2009.

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