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Propiconazole
Common name: Propiconazole
IUPAC name: (?-1-[2-(2,4-dichlorophenyl)-4-propyl-1,3-dioxolan-2-ylmethyl]-1H-1,2,4-triazole
Chemical Abstracts name:    
1-[[2-(2,4-dichlorophenyl)-4-propyl-1,3-dioxolan-2-yl]methyl]-1H-1,2,4-triazole
CAS RN:[60207-90-1]
 
PHYSICAL CHEMISTRY
Mol. wt.: 342.2
Form:Yellowish, odourless, viscous liquid (tech.).
B.p.: 120 °C (1.9 Pa); >250 °C (101 kPa)
V.p.: 2.7×10-2 mPa (20 °C); 5.6×10-2 mPa (25 ºC)
Kow logP = 3.72 (pH 6.6, 25 ºC)
Henry:9.2×10-5 Pa m3 mol-1 (20 ℃, calc.)
S.g./density: 1.29 (20 ºC)
Solubility  In water 100 mg/l (20 ºC). In n-hexane 47 g/l. Completely miscible with ethanol, acetone, toluene and n-octanol (25 °C).
Stability  Stable up to 320 ºC; no significant hydrolysis.
 
TOXICOLOGY
Oral Acute oral  LD50 for rats 1517, mice 1490 mg/kg.
Skin and eye Acute percutaneous  LD50 for rats >4000, rabbits >6000 mg/kg. Non-irritating to skin and eyes (rabbits). No sensitisation (guinea pigs).
Inhalation  LC50 (4 h) for rats >5800 mg/m3.
NOEL (2 y) for rats 3.6, mice 10 mg/kg b.w. daily; (1 y) for dogs 1.9 mg/kg b.w. daily.
ADI (JMPR) 0.04 mg/kg b.w. [1987];  (Novartis) 0.02 mg/kg b.w.
Toxicity class WHO (a.i.) II
EC hazard R22
 
ECOTOXICOLOGY
Birds Acute oral  LD50 for Japanese quail 2223, bobwhite quail 2825, mallard ducks >2510, Pekin ducks >6000 mg/kg. LC50 (8 d) for Japanese quail >1000, bobwhite quail >5620, mallard ducks >5620, Pekin ducks >1000 ppm.
Fish  LC50 (96 h) for carp 6.8, rainbow trout 5.3, golden orfe 5.1, spot 2.6 mg/l.
Daphnia   EC50 4.8 mg/l.
Algae  EC50 0.02-13.6 mg/l for three freshwater algae and two diatom species.
Other aquatic spp. LC50 (96 h) for crayfish 42 mg/l. EC50 (96 h) for mysid shrimp (Mysidopsis bahia) 0.5 mg/l.
Bees Not toxic to bees; LD50 (contact and oral) >100 mg/bee.
Worms  No toxic effects against Lumbricus rebellus.

 
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