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Common NameLeptophos
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中文通用名溴苯膦
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IUPAC(RS)-(O-4-bromo-2,5-dichlorophenyl O-methyl phenylphosphonothioate)
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CASO-(4-bromo-2,5-dichlorophenyl) O-methyl phenylphosphonothioate
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CAS No.21609-90-5
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Molecular FormulaC13H10BrCl2O2PS
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Molecular Structure
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Category
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ActivityInsecticide
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PremixEmulsifiable concentrates 3 Ib a.i./US gall (300 g/1). Wettable powder 45%; dust 3%,granulets 5%.
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Physical PropertiesWhite amorphous solid. Molecular weight: 412.1 g/mol; Melting point70.2-70.6℃ (99.4% purity).Vapour pressure:- 1.5 x 10-5 mmHg at 25℃.Very soluble in benzene, 1.3 kg/l; cyclohexane 142 g/l;acetone, 470 mg/l.
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Toxicology(Rat): Oral LD50 52.8 mg/kg. Dermal LD50 >10,000 mg/kg
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Environmental ProfileOnly very slightly soluble in water, 2.4 mg/l at 25℃
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Transport InformationSignal Word:WARNING; Hazard Class:II(Moderately hazardous)
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