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Common NameCyproconazole
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中文通用名环丙唑醇
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IUPAC(2RS,3RS;2RS,3SR)-2-(4-chlorophenyl)-3-cyclopropyl-1-(1H-1,2,4-triazol-1-yl)butan-2-ol
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CASα-(4-chlorophenyl)-α-(1-cyclopropylethyl)-1H-1,2,4-triazole-1-ethanol
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CAS No.94361-06-5
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Molecular FormulaC15H18ClN3O
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Molecular Structure
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Category
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ActivityFungicide
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PremixTrifloxystrobin+cyproconazole
Cyproconazole+picoxystrobin
Chlorothalonil+cyproconazole+propiconazole
Chlorothalonil+cyproconazole
Azoxystrobin+cyproconazole
Emulsifiable concentrate, flowable suspension, soluble liquid, wettable granule. Premix Parters: gibberellic acid indole-3-butyric acid; indole-3-butyric acid; indole-3-butyric acid 1-naphthaleneacetic acid.
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Physical PropertiesMolecular weight:291.8; Physical form:Colourless solid. Density:1.259 g/cm3; Composition:It is a mixture (c. 1:1) of 2 diastereoisomers. Melting point:106-109 °C; Flash point:No reaction up to 360 °C; Vapour pressure:3.46×10-2 mPa (20 °C); Partition coefficient(n-octanol and water):logP = 2.91 ( pH 7); pKa:No acid or base properties in range pH 3.5-10.; Solubility:In water 140 mg/l (25 °C). In acetone 230, ethanol 230, dimethyl sulfoxide 180, xylene 120 (all in g/l, 25 °C). Stability:Decomposition is <5% after storage for 2 years. Stable in aqueous solutions at pH 1-9 for a test period of 35 days (50 °C) or 14 days (80 °C). Slowly hydrolysed in 1N HCl and NaOH. Stable upon storage and in water. Solubility in acetone 230 g/l, ethanol, 230 g/l, dimethyl sulfoxide 180 g/l, xylene 120 g/l.
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ToxicologyOral:Acute oral
LD50 for male rats 1020 mg/kg, female rats 1333 mg/kg, male mice 200 mg/kg, female mice 218 mg/kg. Percutaneous:Acute percutaneous LD50 for rats and rabbits >2000 mg/kg. Non-irritating to skin and eyes (rabbits). Non-irritating to skin, and not a skin sensitiser (guinea pigs). Inhalation: LC50 (4 h) for rats >5.65 mg/l air. -
Environmental ProfileEcotoxicology:
Bees:LD50 (contact) >0.1 mg/bee; (oral) >1 mg/bee.Birds:Acute oral LD50 for Japanese quail 150 mg/kg. Dietary LC50 (8 d) for Japanese quail 816, mallard ducks 1197 mg/kg diet.Daphnia: LC50 (48 h) 26 mg/l.Fish: LC50 (96 h) for carp 18.9, trout 19, bluegill sunfish 21 mg/l.
Environmental fate:
Animals:In mammals, following oral administration, cyproconazole is rapidly absorbed, extensively metabolised and excreted,DT50 c. 30 h. No bioaccumulation.Soil:In soil, cyproconazole degrades moderately quickly, DT50 c. 3 mo. No accumulation and leaching potential. Soil adsorption, Freundlich K 4.1 (loam, pH 6.4, o.m. 2.3%), 16 (loamy sand,
WATER SOLUBILITY: 140 mg/l at 22°C -
Transport InformationSignal Word:CAUTION; Hazard Class:II (Moderately hazardous)
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