VG
Chemical compound
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VG is a "V-series" nerve agent chemically similar to the better-known VX nerve agent. Tetram is the common Russian name for the substance. Amiton was the trade name for the substance when it was marketed as an insecticide by ICI in the mid-1950s. Wikipedia
Molar mass: 269.34 g/mol
Boiling point: 230°F (110°C)
Vapor pressure: 0.01 mmHg at 80 °C