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Common Name
Triadimenol
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中文通用名
三唑醇
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IUPAC
(1RS,2RS;1RS,2SR)-1-(4-chlorophenoxy)-3,3-dimethyl-1-(1H-1,2,4-triazol-1-yl)butan-2-ol
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CAS
β-(4-chlorophenoxy)-α-(1,1-dimethylethyl)-1H-1,2,4-triazole-1-ethanol
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CAS No.
55219-65-3
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Molecular Formula
C14H18ClN3O2
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Molecular Structure
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Category
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Activity
Fungicide
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Premix
Trifloxystrobin+metalaxyl+triadimenol
TRIADIMENOL+TRIFLUMURON
Kresoxim-methyl+anthraquinone+fenpropimorph+triadimenol+triazoxide
CYPERMETHRIN+TRIADIMENOL
Emulsifiable concentrate, flowable, granule, seed dressing, water dispersible granule, water-oil emulsion, wettable powder. Premix Parters: butafenacil; dicamba; isoproturon;
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Physical Properties
Molecular weight:295.8; Physical form:Colourless crystals, with a weak characteristic odour. Density:A: 1.237; B: 1.299 (22 °C); Composition:(1RS,2SR) is referred to here as diastereoisomer A; (1RS,2RS) is referred to here as diastereoisomer B. The ratio of A:B is c. 7:3. Melting point:A: 138.2 °C; B: 133.5 °C; eutectic A+B: 110 °C; ( tech., 103-120 °C); Vapour pressure:A: 6 × 10-4 mPa; B: 4 × 10-4 mPa (20 °C); Henry constant:A: 3 × 10-6; B: 4 × 10-6 (Pa m3 mol-1, 20 °C); Partition coefficient(n-octanol and water):A: logP = 3.08; B: logP = 3.28 (25 °C); Solubility:In water A: 62; B: 33 mg/l (20 °C). In dichloromethane 200-500, isopropanol 50-100, hexane 0.1-1.0, toluene 20-50 (all in g/l, 20 °C).; Stability:Both diastereoisomers are stable to hydrolysis; DT50 (20 °C) >1 y ( pH 4, 7 or 9).;
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Toxicology
Oral:Acute oral LD50 for rats c. 700, mice c. 1300 mg/kg. Percutaneous:Acute percutaneous LD50 for rats >5000 mg/kg. Non-irritating to eyes and skin (rabbits). Inhalation: LC50 (4 h) for rats >0.9 mg/l air (aerosol). ADI:( JMPR) 0.03 mg/kg b.w. [1985].
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Environmental Profile
Ecotoxicology:
Algae: ErC50 for Scenedesmus subspicatus 3.7 mg/l.Bees:Non-toxic to honeybees.Birds:Acute oral LD50 for bobwhite quail >2000 mg/kg.Daphnia:LC50 (48 h) 51 mg/l.Fish:LC50 (96 h) for golden orfe 17.4-27.3, rainbow trout 14-23.5, bluegill sunfish 15 mg/l.Worms:LC50 for Eisenia foetida 772 mg/kg dry soil.
Environmental fate:
Animals:In rats, triadimenol was metabolised mainly by oxidation of the tert-butyl moiety to the corresponding alcohol and then to carboxylic acid. A small fraction of these compounds was conjugated. Oxidation at the hydroxyl group to the corresponding kSoil:In soil, triadimenol is a degradation product of triadimefon ( q.v.). Degradation involving hydrolytic cleavage leads to the formation of 4-chlorophenol. Metabolism of the individual triadimenol enantiomers proceeds at different rPlant:The most important breakdown reactions of triadimenol in plants after seed treatment and spray application are conjugation of the a.i. with various sugar compounds (especially hexose) and oxidation at the tert-butyl moiety. The res
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Transport Information
Signal Word:CAUTION; Hazard Class:III(Slightly hazardous)