3-Quinuclidinyl benzilate

3-Quinuclidinyl benzilate
Names
	IUPAC name 1-azabicyclo[2.2.2]octan-3-yl hydroxy(diphenyl)acetate
	Other names BZ; EA-2277; CS-4030; QNB
Identifiers
CAS Number	6581-06-2 ;
3D model (JSmol)	Interactive image;
ChEMBL	ChEMBL12980 ;
ChemSpider	21577 ;
ECHA InfoCard	100.164.060
IUPHAR/BPS	3260;
MeSH	Quinuclidinyl+benzilate
PubChem CID	23056;
UNII	E69DLR7470 ;
CompTox Dashboard (EPA)	DTXSID00894168 ;
	InChI 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 Key: HGMITUYOCPPQLE-UHFFFAOYSA-N ; 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;
	SMILES O=C(C(C1=CC=CC=C1)(C2=CC=CC=C2)O)OC3CN4CCC3CC4;
Properties
Chemical formula	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). verify (what is ?) Infobox references

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) is an odorless and bitter-tasting military incapacitating agent. BZ is an antagonist of muscarinic acetylcholine receptors whose structure is the ester of benzilic acid with an alcohol derived from quinuclidine.