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Chemical Identification
Common Name
Fenarimol
中文通用名
氯苯嘧啶醇
IUPAC
(RS)-2,4′-dichloro-α-(pyrimidin-5-yl)benzhydryl alcohol
CAS
α-(2-chlorophenyl)-α-(4-chlorophenyl)-5-pyrimidinemethanol
CAS No.
60168-88-9
Molecular Formula
C17H12Cl2N2O
Molecular Structure
Category
Activity
Fenarimol inhibits fungal growth by adversely affecting the formation of the fungal sterol ergosterol
CropUse
for use on fruit and nut crops such as apples, cherries, filberts (nonbearing), grapes, hops, pears, and pecans, as well as on ornamental plants, trees, and grasses and turf lawns.
Disease Spectrum
for control of such pests as scab, powdery mildew, rusts, and leaf spot.
Weed Spectrum

Pest Spectrum

Premix

Physical Properties
Molecular weight:331.2; Physical form:Off-white crystals. Density:1.40; Composition:Tech. is 98%. Melting point:117-119 °C; Vapour pressure:0.065 mPa (25 °C) by vapour pressure balance; Henry constant:1.57 × 10-3 Pa m3 mol-1 ( calc.); Partition coefficient(n-octanol and water):logP = 3.69 ( pH 7, 25 °C); Solubility:In water 13.7 mg/l ( pH 7, 25 °C). In acetone 151, methanol 98.0, xylene 33.3 (all in g/l, 20 °C). Readily soluble in most organic solvents, but only slightly soluble in hexane.; Stability:Decomposed rapidly by sunlight, aqueous DT50 c. 12 h. Hydrolytically stable up to 52 °C ( pH 3-9).;
Toxicology
Oral:Acute oral LD50 for rats 2500, mice 4500, dogs >200 mg/ kg. Percutaneous:Acute percutaneous LD50 for rabbits >2000 mg/kg. Mild eye irritant; non-irritating to skin (rabbits). Not a skin sensitiser (guinea pigs). Inhalation:No adverse effect seen when rats exposed for 1 h to 2.04 mg tech./l air. Phytotoxicity:Non-phytotoxic when used as directed. If used in excessive amounts, abnormal leaf development and darker green colouration may result. ADI:( JMPR) 0.0008 mg/
Environmental Profile
Ecotoxicology: 
Algae:For Scenedesmus subspicatus ErC50 5.1 mg/l, NOEC 0.59 mg/l; for Raphidocellis subcapitata ErC50 1.5 Bees: LD50 (48 h) (oral) >10 mg/bee; (contact) >100 mg/bee.Birds:Acute oral LD50 for bobwhite quail >2000 mg/ kg.Daphnia: EC50 (48 h) 5.1 mg/l, NOEC 4.0 mg/l.Fish: LC50 (96 h) for rainbow trout 4.1, bluegill sunfish 5.7 mg spp.:Harmless to Typhlodromus pyri, Aphidius rhopalosiphi, Poecilus cupreus and Chrysoperla carnea

Environmental fate: 
Animals:In mammals, following oral administration, fenarimol is rapidly excreted.Soil:DT50 >365 d under aerobic conditions in laboratory soil (28% sand, 14.7% clay, 57.3% silt, 2.3% o.m., pH 6.1). Field DT50 14-130 (average 79) d. Koc
Transport Information
Signal Word:CAUTION; Hazard Class:III(Slightly hazardous)

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