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Tabun (nerve agent)

Tabun
Names
IUPAC name
(RS)-Ethyl N,N-Dimethylphosphoramidocyanidate
Other names
GA; Ethyl dimethylphosphoramidocyanidate; Dimethylaminoethoxy-cyanophosphine oxide; Dimethylamidoethoxyphosphoryl cyanide; Ethyl dimethylaminocyanophosphonate; Ethyl ester of dimethylphosphoroamidocyanidic acid; Ethyl phosphorodimethylamidocyanidate; Cyanodimethylaminoethoxyphosphine oxide; Dimethylaminoethodycyanophosphine oxide; EA-1205; TL-1578
Identifiers
3D model (JSmol)
ChEMBL
ChemSpider
UNII
  • InChI=1S/C5H11N2O2P/c1-4-9-10(8,5-6)7(2)3/h4H2,1-3H3 checkY
    Key: PJVJTCIRVMBVIA-UHFFFAOYSA-N checkY
  • InChI=1/C5H11N2O2P/c1-4-9-10(8,5-6)7(2)3/h4H2,1-3H3
    Key: PJVJTCIRVMBVIA-UHFFFAOYAG
  • N#CP(=O)(OCC)N(C)C
Properties
C5H11N2O2P
Molar mass 162.129 g·mol−1
Appearance Colorless to brown liquid
Density 1.0887 g/cm3 at 25 °C
1.102 g/cm3 at 20 °C
Melting point −50 °C (−58 °F; 223 K)
Boiling point 247.5 °C (477.5 °F; 520.6 K)
9.8 g/100 g at 25 °C
7.2 g/100 g at 20 °C
Vapor pressure 0.07 mmHg (9 Pa)
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
 Highly toxic. Fires involving this chemical may result in the formation of hydrogen cyanide
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 4: Very short exposure could cause death or major residual injury. E.g. VX gasFlammability 2: Must be moderately heated or exposed to relatively high ambient temperature before ignition can occur. Flash point between 38 and 93 °C (100 and 200 °F). E.g. diesel fuelInstability 1: Normally stable, but can become unstable at elevated temperatures and pressures. E.g. calciumSpecial hazards (white): no code
4
2
1
Flash point 78 °C (172 °F; 351 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 ?)

Tabun or GA is an extremely toxic synthetic organophosphorus compound.[1] It is classified as a nerve agent because it can fatally interfere with normal functioning of the mammalian nervous system. Its production is strictly controlled and stockpiling outlawed by the Chemical Weapons Convention of 1993. Tabun is the first of the G-series nerve agents along with GB (sarin), GD (soman) and GF (cyclosarin).

  1. ^ PubChem. "Tabun". pubchem.ncbi.nlm.nih.gov. Retrieved 2022-07-03.

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