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EXTOXNET PIP - GLYPH%,. ATE Page 1 of 4 <br /> EXTOXNET <br /> Extension Toxicology Network <br /> Pesticide Information Profiles <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 /> Glyphosate <br /> Trade and Other Names: Trade names for products containing glyphosate include Gallup, <br /> Landmaster, Pondmaster, Ranger, Roundup, Rodeo, and Touchdown. It may be used in formulations <br /> with other herbicides. <br /> Reguiatory Status: Glyphosate acid and its salts are moderately toxic compounds in EPA toxicity <br /> class II. Labels for products containing these compounds must bear the Signal Word WARNING. <br /> Glyphosate is a General Use Pesticide (GUP). <br /> Chemical Class: Not Available <br /> Introduction: Glyphosate is a broad-spectrum, nonselective systemic herbicide used for control of <br /> annual and perennial plants including grasses, sedges, broad-leaved weeds, and woody plants. It can be <br /> used on non-cropland as well as on a great variety of crops. Glyphosate itself is an acid, but it is <br /> commonly used in salt form, most commonly the isopropylamine salt. It may also be available in acidic <br /> or trimethylsulfonium salt forms. It is generally distributed as water-soluble concentrates and powders. <br /> The information presented here refers to the technical grade of the acid form of glyphosate, unless <br /> otherwise noted. <br /> Formulation: Glyphosate itself is an acid, but it is commonly used in salt form, most commonly the <br /> isopropylamine salt. It may also be available in acidic or trimethylsulfonium salt forms. It is generally <br /> distributed as water-soluble concentrates and powders. <br /> Toxicological Effects: <br /> • Acute toxicity: Glyphosate is practically nontoxic by ingestion, with a reported acute oral LD50 <br /> of 5600 mg/kg in the rat. The toxicities of the technical acid (glyphosate) and the formulated <br /> product (Roundup) are nearly the same [58,96]. The oral LD50 for the trimethylsulfonium salt is <br /> littp:Hextoxnet.orst.edu/pips/glyphosa.htm 9/21/2004 <br />