What is "tremetone"

Tremetone is a chemical compound found in tremetol, a toxin mixture from snakeroot ( Ageratina altissima) that causes milk sickness in humans and trembles in livestock. Tremetone is the main constituent of at least 11 chemically related substances in tremetol. Tremetone is toxic to fish, but not to chicken, and is therefore not the major toxic compound in tremetol. Tremetol can be found in a number of different species of the Asteraceae family, including snakeroot ( Ageratina altissima) and rayless goldenrod ( Isocoma pluriflora).