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Chemical Identification
Common Name
Flurtamone
中文通用名
呋草酮
IUPAC
(RS)-5-methylamino-2-phenyl-4-(α,α,α-trifluoro-m-tolyl)furan-3(2H)-one
CAS
5-(methylamino)-2-phenyl-4-[3-(trifluoromethyl)phenyl]-3(2H)-furanone
CAS No.
96525-23-4
Molecular Formula
C18H14F3NO2
Molecular Structure
Category
Activity
Flurtamone is primarily a pre-emergence or pre-plant incorporated herbicide. It is absorbed through roots and shoots causing immediate chlorosis. After application, the product remains near the surface of the soil and is available to be taken up by roots for some weeks afterwards. The product has some post-emergence activity; this is improved by the use of adjuvants. A humid environment at the time of treatment allows for lower application rates.

Some transient phytotoxicity on young cereal leaves, especially wheat, has been reported. Trials are on-going to determine its safety to other vegetables and sorghum.
CropUse
CropUses:
Cereals, vegetables (including peas and potatoes), sunflowers, cotton, peanuts

Cereals

250/375 g ai/ha

Sunflowers

250/375 g ai/ha

Premix
Flufenacet+Diflufenican+Flurtamone

Type

AI concn

 

50% (w/w)

 

 

 

 


Wettable powder (WP) ,Water-dispersible granule (WG), Suspension concentrate (SC) 
Premix Parters: mancozeb; propiconazole;

Physical Properties
Molecular weight:333.3; Physical form:Ivory powder. Melting point:152-155 °C; Solubility:In water 35 mg/l (20 °C). Soluble in acetone, dichloromethane, methanol; slightly soluble in isopropanol.; Stability:Stable, but avoid concentrated acids or bases.
Toxicology
Oral:Acute oral LD50 for rats 500 mg/ kg. Percutaneous:Acute percutaneous LD50 for rabbits 500, rats >5000 mg/kg. Non-irritating to skin and transient eye irritant (rabbits). Phytotoxicity:Transitory bleaching effect. ADI:Not used on food crops.
Environmental Profile
Ecotoxicology: 
Bees: LD50 (48 h, contact) >100 μg/bee. Birds: LC50 for bobwhite quail >6000, mallard ducks 2000 mg/kg diet.Fish: LC50 (96 h) for bluegill sunfish 11, rainbow trout 7 mg/l. 

Environmental fate: 
Soil:Field DT50 46-65 d; the main metabolite is trifluoromethylbenzoic acid. Moderately adsorbed on soil colloids; flurtamone residues remained in the upper 20 cm, and the metabolite in the upper 10 cm of soil. No residues of either Plant:No residues in peanuts and in cereals at harvest.
Transport Information
Signal Word:CAUTION; Hazard Class:III(Slightly hazardous)

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