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Common NameLactofen
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中文通用名乳氟禾草灵
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IUPACethyl O-[5-(2-chloro-α,α,α-trifluoro-p-tolyloxy)-2-nitrobenzoyl]-DL-lactate
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CAS2-ethoxy-1-methyl-2-oxoethyl 5-[2-chloro-4-(trifluoromethyl)phenoxy]-2-nitrobenzoate
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CAS No.77501-63-4
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Molecular FormulaC19H15ClF3NO7
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Molecular Structure
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Physical PropertiesMolecular weight:461.8g/mol; Physical form:Dark brown to tan. Density:1.391 (25℃); Composition:Tech. is 74-79%. Melting point:44-46℃; Flash point:93 ℃; Vapour pressure:9.3 × 10-3 mPa (20 ℃); Henry constant:4.56 × 10-3 Pa m3 mol-1 (20℃, calc.); Solubility:In water <1 mg/l (20℃).; Stability:No decomposition at ambient temperatures for 6 months.
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ToxicologyOral:Acute oral LD50 for rats >5000 mg/ kg. Percutaneous:Acute percutaneous LD50 for rats 2000 mg/kg. Formulation severely irritating to eyes. Inhalation: LC50 (4 h) for rats >5.3 mg/l. ADI:( JMPR) 0.4 mg/ kg b.w. [1998].
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Environmental ProfileEcotoxicology:
Bees: LD50 >160 μg/bee.Birds: LD50 for quail >2510 mg/kg. LC50 for ducks and quail >5620 ppm.Daphnia: LD50 >100 ppb.Fish: LC50 (96 h) for bluegill sunfish and rainbow trout >100 ppb.
Environmental fate:
Soil:Microbially degraded, DT50 3-7 d. Koc 10 000. -
Transport InformationSignal Word:CAUTION; Hazard Class:III(Slightly hazardous)
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