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Fipronil
Common name:Fipronil
Specifications:96%TC
Application:Potatoes, Rice, Soybeans, Sugar cane, Tobacco

Molecular weight:437.2; Physical form:White solid. Density:1.477-1.626 (20 °C); Melting point:200-201 °C; ( tech., 195.5-203 °C); Vapour pressure:3.7 ×10-4 mPa (25 °C); Henry constant:3.7 ×10-5 Pa m3 mol-1 ( calc.); Partition coefficient(n-octanol and water):logP = 4.0 (shake flask method); Solubility:In water 1.9 ( pH 5), 2.4 ( pH 9), 1.9 (distilled) (all in mg/l, 20 °C).Oral:Acute oral LD50 for rats 97, mice 95 mg/ kg. Percutaneous:Acute percutaneous LD50 for rats >2000, rabbits 354 mg/kg. Not a skin or eye irritant ( OECD criteria). Not a skin sensitiser. Inhalation: LC50 (4 h) for rats 0.682 mg/l ( tech.; nose only exposure).