Furilazole

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Chemical Identification | General Product Information | Physical & Safety Data

Chemical Identification

Common Name

Furilazole

中文通用名

解草噁唑

IUPAC

(RS)-3-dichloroacetyl-5-(2-furanyl)-2,2-dimethyloxazolidine

CAS

3-(dichloroacetyl)-5-(2-furanyl)-2,2-dimethyloxazolidine

CAS No.

121776-33-8

Molecular Formula

C₁₁H₁₃Cl₂NO₃

Molecular Structure

General Product Information

Category

Herbicide Safeners > Herbicide Safeners

Activity

Herbicide safener
Furilazole is used as a pre-plant or pre-emergence treatment. It is absorbed mainly by the coleoptile, with some additional uptake by the root system. Furilazole safens all varieties of maize under a wide range of climatic conditions. Monsanto reports that the safening activity is reduced in soils with low organic content.

Physical & Safety Data

Physical Properties

Molecular weight:278.1; Physical form:Light brown powder ( tech.). Melting point:96.6-97.6 °C; Flash point:135 °C; Vapour pressure:8.84 × 102 mPa (25 °C); Partition coefficient(n-octanol and water):logP = 2.12 (23 °C); Solubility:In water 0.0197 g/100 ml (20 °C).;

Toxicology

Oral:Acute oral LD₅₀ for rats 869 mg/ kg. Percutaneous:Acute percutaneous LD₅₀ for rats >5000 mg/kg. Non-irritating to skin; slight eye irritant (rabbits). Non-sensitising to skin (guinea pigs). Inhalation: LC₅₀ for rats >2.3 mg/l air.

Environmental Profile

Ecotoxicology:
Bees: LD₅₀ >100 mg/bee.Birds: LD₅₀ for bobwhite quail >2000 mg/kg. LC₅₀ for bobwhite quail and mallard ducks >5620 ppm.Daphnia: LC₅₀ (48 h) 26 mg/l.Fish: LC₅₀ (96 h) for bluegill sunfish 4.6, rainbow trout 6.2 mg/l.

Environmental fate:
Soil:Estimated DT₅₀ in aerobic soils 33-53 d, in anaerobic soils 13-15 d.Plant:The metabolic pathway in maize and sorghum appears to involve conversion to oxamic acid, (?-2-[5-(2-furyl)-2,2-dimethyl-1,3-oxazolidin-3-yl]-2-oxoacetic acid, and/or an alcohol, interconversion of the acid and alcohol, and conjugation of the alcohol to gi

Transport Information

Hazard Class:O (Obsolete as pesticide, not classified)