Fenarimol

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Chemical Identification | General Product Information | Physical & Safety Data

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

General Product Information

Category

Fungicides > Pyrimidine fungicides

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 & Safety Data

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 E_rC₅₀ 5.1 mg/l, NOEC 0.59 mg/l; for Raphidocellis subcapitata E_rC₅₀ 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. K_oc

Transport Information

Signal Word:CAUTION; Hazard Class:III(Slightly hazardous)

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