tabun

[GornEi]

the first known nerve agent, synthesized by German chemists in 1936; a highly toxic combustible liquid that is soluble in organic solvents and is used as a nerve gas in chemical warfare

[Becky]

An extremely toxic nerve agent; a clear, tasteless liquid, molecular formula CHNOP.

[Mendocky]

Tabun is a deadly nerve gas that is colorless, tasteless, and odorless, developed by the German army during World War II. Its chemical formula is C5H11N2O2P and it is more lethal when absorbed through the skin. Its also known as GA among the NATO members.

[Anthonyacox]

Tabun or GA is an extremely toxic chemical substance. It is a clear, colorless, and tasteless liquid with a faint fruity odor. It is classified as a nerve agent because it fatally interferes with normal functioning of the mammalian nervous system. As a chemical weapon, it is classified as a weapon of mass destruction by the United Nations according to UN Resolution 687. Its production is strictly controlled and stockpiling outlawed by the Chemical Weapons Convention of 1993. Tabun is the first of the so-called G-series nerve agents along with GB, GD and GF.
Although pure tabun is clear, less-pure tabun may be brown. It is a volatile chemical, although less so than either sarin or soman.
Tabun can be destroyed with bleaching powder, though the poisonous gas cyanogen chloride is produced.