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EXTO_XNE_T PIP-2,4-D _ <br />III IIIIIIIII IIII III • <br />999 <br />EXTOXNET <br />• <br />Extension Toxicology Network <br />Pesticide Information Profiles <br />hup://ace.ace.orst.edu/in(o/extox neUpips/24-D.htnsas <br />A Pesticide Information Project of Cooperative Extension Offices of Cornell University, Oregon State <br />University, the University of Idaho, and the University of California at Davis and the Institute for <br />Environmental Toxicology, Michigan State University. Major support and funding was provided by the <br />USDA/Extension Service/National Agricultural Pesticide Impact Assessment Program. <br />EXTOXNET primary files maintained and archived at Oregon State University <br />Revised June 1996 <br />2,4-D <br />Trade and Other Names:2,4-D is used in many commercial products. Commercial names for <br />products containing 2,4-D include Aqua-Kleen, Barrage, Lawn-Keep, Malerbane, Planotox, Plantgard, <br />Savage, Salvo, Weedone, and Weedtrine-II. <br />Regulatory Status: 2,4-D is a General Use Pesticide (GUP) in the U.S. The diethylamine salt is <br />toxicity class III- slightly toxic orally, but toxicity class I-highly toxic by eye exposure. It bears the Signal <br />Word DANGER -POISON because 2,4-D has produced serious eye and skin irritation among agricultural <br />workers. <br />Chemical Class: phenoxy compound <br />Introduction: There are many forms or derivatives of 2,4-D including esters, amines, and salts. Unless <br />otherwise specified, [his document will refer [o the acid form of 2,4-D. 2,4-D, a chlorinated phenoxy <br />compound, functions as a systemic herbicide and is used to control many types of broadleaf weeds. It is <br />used in cultivated agriculture, in pasture and rangeland applications, forest management, home, garden, <br />and to control aquatic vegetation. It may be found in emulsion form, in aqueous solutions (salts), and as a <br />dry compound. <br />The product Agent Orange, used extensively throughout Vietnam, was about 50% 2,4-D. However, the <br />controversies associated with the use of Agent Orange were associated with a contaminant (dioxin) in the <br />2,4,5-T component of the defoliant. <br />Formulation: It may be found in emulsion form, in aqueous solutions (salts), and as a dry compound. <br />Toxicoloctical Effects: <br />I of4 11/18/9810:38 A6.' <br />