Clopyralid olamine is a selective herbicide used to control weeds in turf. It is moderately persistent in the environment and, based on its physico-chemical properties, it has high potential to leach to groundwater. Clopyralid olamine tends to be low to moderately toxic to fauna and flora. It has a low mammalian toxicity as a skin, eye and respiratory irritant
Clopyralid (2-hydroxyethyl)ammonium
Clopyralid itself is produced industrially as 3,6 dichloropyridine 2 carboxylic acid, typically via chlorination and carboxylation routes applied to pyridine derivatives. Refinement processes described in patents involve electrochemical synthesis followed by membrane based concentration and purification to achieve a high purity acid. The olamine (monoethanolamine) salt is then formed through a straightforward neutralisation step in which purified clopyralid acid is reacted with monoethanolamine to yield the water soluble clopyralid olamine salt used in herbicide formulations.
Selective, systemic, absorbed through leaves and roots. Synthetic auxin.
