Names | |
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IUPAC name
(RS)-Ethyl N,N-Dimethylphosphoramidocyanidate
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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
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Identifiers | |
3D model (JSmol)
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ChEMBL | |
ChemSpider | |
PubChem CID
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UNII | |
CompTox Dashboard (EPA)
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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
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Highly toxic. Fires involving this chemical may result in the formation of hydrogen cyanide |
NFPA 704 (fire diamond) | |
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).
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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).