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Common NameTriadimefon
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中文通用名三唑酮
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IUPAC(RS)-1-(4-chlorophenoxy)-3,3-dimethyl-1-(1H-1,2,4-triazol-1-yl)butan-2-one
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CAS1-(4-chlorophenoxy)-3,3-dimethyl-1-(1H-1,2,4-triazol-1-yl)-2-butanone
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CAS No.43121-43-3
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Molecular FormulaC14H16ClN3O2
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Molecular Structure
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Category
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ActivityFungicide
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PremixTrifloxystrobin+triadimefon
Tribenuron-methyl+benzoic acid+triadimefon
Triadimefon+omethoate
Triadimefon+ethylicin
Triadimefon+carbendazim+phoxim
Imidacloprid+triadimefon
Imidacloprid+carbendazim+triadimefon
Fenvalerate+triadimefon
Chlorothalonil+prochloraz+triadimefon
Carboxin+Triadimefon
Carbendazim+triadimefon
Dry flowable, emulsifiable concentrate, granule, wettable powder. Premix Parters: chloridazon;
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Physical PropertiesMolecular weight:293.8; Physical form:Colourless crystals, with a weak characteristic odour. Density:1.283 (21.5 °C); Composition:Racemate ( i.e. 1:1 mixture of (1R)- and (1S)- enantiomers). Melting point:Modification 1: 78 °C; modification 2: 82 °C; Vapour pressure:0.02 mPa (20 °C); 0.06 mPa (25 °C); Henry constant:9 × 10-5 Pa m3 mol-1 (20 °C); Partition coefficient(n-octanol and water):logP = 3.11; Solubility:In water 64 mg/l (20 °C). Moderately soluble in most organic solvents except aliphatics. In dichloromethane, toluene >200, isopropanol 99, hexane 6.3 (all in g/l, 20 °C).; Stability:Stable to hydrolysis; DT50 (22 °C) >1 y ( pH 3, 6, and 9).;
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ToxicologyOral:Acute oral LD50 for rats and mice c. 1000, rabbits 250-500, dogs >500 mg/kg. Percutaneous:Acute percutaneous LD50 for rats >5000 mg/kg. Mildly irritating to eyes and skin (rabbits). Inhalation: LC50 (4 h) for rats 3.27 mg/l air (dust), >0.5 mg/l (air). Phytotoxicity:Ornamentals may be damaged if used at excessive rates.
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Environmental ProfileEcotoxicology:
Algae: ErC50 for Scenedesmus subspicatus 1.71 mg/l.Bees:LD50 (contact) >100 µg/bee.Birds:Acute oral LD50 for mallard ducks >4000 mg/kg. Dietary LC50 (5 d) for mallard ducks >10 000, bobwhite quail >4640 mg/kg diet.Daphnia: LC50 (48 h) 11.3 mg/l.Fish: LC50 (96 h) for bluegill sunfish 11, orfe 13.8, rainbow trout 17.4 mg/l.
Environmental fate:
Animals:In mammals, following oral administration, 83-96% is excreted unchanged in the urine and faeces within 2 to 3 d. However, metabolism occurs in the liver, mostly to triadimenol ( q.v.) and its glucuronic acid conjugates. Half-life Soil:In soil, the carbonyl group is reduced to a hydroxyl group, with the formation of triadimenol (q.v.). DT50 of triadimefon in sandy loam c. 18 d, in loam c. 6 d. Koc q.v.). -
Transport InformationSignal Word:CAUTION; Hazard Class:III(Slightly hazardous)
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