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Common NameSulprofos
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中文通用名硫丙磷
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IUPAC(RS)-[O-ethyl O-4-(methylthio)phenyl S-propyl phosphorodithioate]
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CASO-ethyl O-[4-(methylthio)phenyl] S-propyl phosphorodithioate
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CAS No.35400-43-2
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Molecular FormulaC12H19O2PS3
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Molecular Structure
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Category
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ActivityInsecticide
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Physical PropertiesMolecular weight:322.4; Physical form:Colourless oil, with a mercaptan-like odour; ( tech., tan liquid). Density:1.20 (20 °C); Melting point:-15 °C ( tech.); Flash point:64 °C; Vapour pressure:0.084 mPa (20 °C); 0.16 mPa (25 °C); Partition coefficient(n-octanol and water):logP = 5.48; Solubility:In water 0.31 mg/l (20 °C). In isopropanol 400-600, dichloromethane, hexane, toluene >1200 (all in g/l, 20 °C).; Stability:Hydrolysis in buffer systems, DT50 (22 °C) 26 d ( pH 4), 151 d ( pH 7), 51 d ( pH 9). Photodegraded in water and on soil surfaces. For films in sunlight, 50% decomposition occurs i;
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ToxicologyOral:Acute oral LD50 for male rats 304, female rats 176, male and female mice c. 1700 mg/kg. Percutaneous:Acute percutaneous LD50 for male rats 5491, female rats 1064 mg/kg. Not irritating to skin; mild irritant to eyes (rabbits). Not a skin sensitiser. Inhalation: LC50 (4 h) for male and female rats >4130 µg/l air.
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Environmental ProfileEcotoxicology:
Algae: ErC50 for Selenastrum capricornutum 64 mg/l.Birds:Acute oral LD50 for bobwhite quail 47 mg/kg. Dietary LC50 (5 d) for bobwhite quail 99 mg/kg diet.Daphnia: LC50 (48 h) 0.83-1 µg/l.Fish: LC50 (96 h) for bluegill sunfish 11-14, rainbow trout 23-38 mg/l.
Environmental fate:
Animals:In rats, following oral administration, c. 92% is eliminated within 24 hours. The main degradation products are the oxygen-analogue, phenol, sulprofos sulfoxide and sulprofos sulfone, and the corresponding oxygen-analogues and phenols.Soil:The adsorption of sulprofos in various soil types occurred rapidly. The compound is highly adsorbed. The half-life of sulprofos is in the range of some days to several weeks, depending on the soil types. The major metabolites are sulprofos sulfoxide and sPlant:The major metabolites are sulprofos sulfoxide and sulprofos sulfone. The corresponding phenols and oxygen-analogues are minor degradation products. -
Transport InformationSignal Word:WARNING; Hazard Class:II(Moderately hazardous)
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