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EPTC(Eptam)Herbicide Profile 10/83 Page 1 of 4 <br /> i <br /> hill <br /> PMEP Home DPesticide Active ingredient %.PO( ®Herbicides and Growth dalapon to UT� EPTC(Eptam)Herbicide Profile <br /> Pace Information Regulators ®ethylene ©(EDtam� ®10/83 <br /> am EPTC (Eptam) Herbicide Profile 10/83 <br /> CHEMICAL FACT SHEET FOR: <br /> EPTC <br /> FACT SHEET NUMBER: 06 <br /> DATE ISSUED: OCTOBER 3, 1983 <br /> r. <br /> 1. DESCRIPTION OF CHEMICAL <br /> - Generic Name: s-ethyl dipropylthiocarbamate (C9H19NOS) <br /> r. - Common Name: EPTC <br /> - Trade Name: Chemolimpex, Eptam, and Eradicane <br /> - EPA Shaughnessy Code: 041401 <br /> - Chemical Abstracts Service (CAS) Registry Number: 759-94-4 <br /> - Year of Initial Registration: 1969 <br /> - Pesticide Type: Herbicide <br /> - Chemical Family: Thiocarbamate <br /> - U.S. and Foreign Producers: Stauffer Chemical Company <br /> 2. USE PATTERNS AND FORMULATIONS <br /> - Application sites: EPTC is a selective thiocarbamate herbicide <br /> which is registered for use in preemergent control of certain annual <br /> grasses, broadleaf weeds and perennial weeds, such as quackgrass, <br /> Bermudagrass, and nutsedge on field, vegetable, orchard, ornamental, <br /> and noncrop sites. <br /> r. - Types of formulations: EPTC is available in granular and emulsifiable <br /> liquid concentrate formulations. <br /> - Types and methods of application: EPTC must be incorporated in the <br /> soil by disking, applied with subsurface injection equipment, or <br /> r metered into irrigation water to obtain proper weed control. The <br /> specific method of application and type of equipment are determined by <br /> site, formulation, and availability of equipment. <br /> - Application rates: 2.0 lbs. a.i./A to 7.0 lbs. a.i./A <br /> - Usual carriers: water and clay <br /> 3. SCIENCE FINDINGS <br /> Chemical Characteristics <br /> Technical EPTC is a light yellow liquid. At room temperature, EPTC is <br /> WED The chemical does not present any unusual handling hazards. <br /> Toxicological Characteristics <br /> - Technical EPTC is potentially a strong eye irritant (Toxicity <br /> Category II) . The available data also indicate that technical EPTC <br /> has relatively low acute oral, dermal, and inhalation toxicities, <br /> r_ and low potential for primary dermal irritation. <br /> - Studies on butylate (a close structural relative of EPTC) , as well <br /> as studies on EPTC itself, have indicated effects of impaired <br /> clotting function in test animals. Therefore, any additional <br /> studies on EPTC must include a test for clotting function and <br /> hematology in the protocol design to better define the effects on <br /> clotting and clearly establish a no-observed-effect-level (NOEL) . <br /> - Acute toxicology studies on EPTC are as follows: <br /> - Oral LD50 in rats: 1,652 mg/kg body weight, Toxicity Category III <br /> - Oral LD50 in mice: 3,160 mg/kg body weight, Toxicity Category III <br /> - Inhalation LC50 in rats: 4.3 mg/1, Toxicity Category III <br /> - Dermal LD50 in rabbits: 2,750 mg/kg body weight, Toxicity <br /> Category III <br /> Primary eye irritation in rabbits: severe eye irritant, Toxicity <br /> http://pmep.cce.comell.edu/profiles/herb-growthreg/dalapon-ethephon/eptc/herb-prof-eptc.ht nl 10/30/2003 <br />