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Chemical Identification
Common Name
Diniconazole
中文通用名
烯唑醇
IUPAC
(E)-(RS)-1-(2,4-dichlorophenyl)-4,4-dimethyl-2-(1H-1,2,4-triazol-1-yl)pent-1-en-3-ol
CAS
E)-β-[(2,4-dichlorophenyl)methylene]-α-(1,1-dimethylethyl)-1H-1,2,4-triazole-1-ethanol
CAS No.
83657-24-3
Molecular Formula
C15H17Cl2N3O
Molecular Structure
Category
Activity
Fungicide
Premix
Chlorothalonil+diniconazole
Emulsifiable concentrate, water dispersible granule, wettable powder. Premix Parters: difenoconazole; penconazole.
Physical Properties
Molecular weight:326.2; Physical form:Colourless crystals. Density:1.32 (20 °C); Melting point:c. 134-156 °C; Vapour pressure:2.93 mPa (20 °C); 4.9 mPa (25 °C); Partition coefficient(n-octanol and water):logP = 4.3 (25 °C); Solubility:In water 4 mg/l (25 °C). In acetone, methanol 95, xylene 14, hexane 0.7 (all in g/ kg, 25 °C). Stability:Stable to heat, light, and moisture. Soluble in xylene, acetone, methanol, chloroform; less in xylene, hexane.
Toxicology
Oral:Acute oral LD50 for male rats 639 mg/kg, female rats 474 mg/kg. Percutaneous:Acute percutaneous LD50 for rats >5000 mg/kg. Mild eye irritant; non-irritating to skin (rabbits). Not a skin sensitiser (guinea pigs). Inhalation: LC50 (4 h) for rats >2770 mg/m3.
Environmental Profile
Ecotoxicology: 
Bees:Acute contact LD50 for bees >20 µg/bee.Birds:Acute oral LD50 for bobwhite quail 1490 mg/kg, mallard ducks >2000 mg/kg. Dietary LC50 (8 d) for mallard ducks 5075 mg/kg diet.Fish: LC50 (96 h) for rainbow trout 1.58, Japanese killifish 6.84, carp 4.0 mg/l. 
Environmental fate: 
Animals:In rats, following oral administration, diniconazole is rapidly metabolised by hydroxylation of the tert-butyl methyl groups. Within 7 days, 52-87% is excreted in the faeces and 13-46% in the urine.Plant:Half-life in cereals is a few weeks.
WATER SOLUBILITY: Very slight.
Transport Information
Signal Word:CAUTION; Hazard Class:III (Slightly hazardous)

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