(2,4,5-trichlorophenoxy) acetic acid

(2,4,5-tri·chlo·ro·phen·ox·y) a·ce·tic ac·id

(trī-klōr'ō-fē-nok'sē ă-sē'tik as'id)
An herbicide and defoliant synthesized by condensation of chloracetic acid and 2,4,5-trichlorophenol, used as the principal constituent of Agent Orange.