(2,4,5-trichlorophenoxy)acetic acid

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(2,4,5-tri·chlor·o·phen·ox·y)a·ce·tic ac·id (2,4,5-T),

(trī-klōr'ō-fe-nok'sē-a-sē'tik as'id),
A herbicide and defoliant synthesized by condensation of chloracetic acid and 2,4,5-trichlorophenol, used as the principal constituent of Agent Orange.
References in periodicals archive ?
A realistic hypothesis is that water and food have been contaminated with 2,3,7,8-TCDD from use of 2,4,5-trichlorophenoxyacetic acid (a component of Agent Orange), a phenoxy acid herbicide that often contains dioxin and related compounds as impurities.
The unique congener pattern [TCDD was the major (70-80%) contributor to the toxic equivalent (TEQ) (38,39)] suggested that the community was exposed to a TCDD-contaminated stock of the herbicide 2,4,5-trichlorophenoxyacetic acid (2,4,5-T), similar to the defoliant Agent Orange that was used in Vietnam.
employees of factories located in Newark, New Jersey, and Verona, Missouri, involved in the manufacture of 2,4,5-trichlorophenol and the associated herbicide 2,4,5-trichlorophenoxyacetic acid (2,4,5-T, no longer used in Europe or North America) (21,22); residents of Seveso, Italy, where a 1976 explosion at a 2,4,5-trichlorophenol factory exposed local residents to TCDD (23); and U.S.