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Chemical Identification
Common Name
Flusulfamide
中文通用名
磺菌胺
IUPAC
2′,4-dichloro-α,α,α-trifluoro-4′-nitro-m-toluenesulfonanilide
CAS
4-chloro-N-(2-chloro-4-nitrophenyl)-3-(trifluoromethyl)benzenesulfonamide
CAS No.
106917-52-6
Molecular Formula
C13H7Cl2F3N2O4S
Molecular Structure
Category
Activity
Flusulfamide is primarily a soil-applied fungicide. It controls the myxomycete fungi, Plasmodiophora brassicae (clubroot of brassicas), Spongospora subterranea (powdery scab of potatoes) and Streptomyces scabies (common potato scab). It prevents germination of both resting spores and secondary zoospores, this is due to the cleavage of key structures within the spore walls. The product can be incorporated into the soil or applied directly to tubers and transplants prior to planting.

In field trials, flusulfamide, used at very much lower application rates, gave greater disease control than reference products. Mitsui has reported no incidences of crop damage at recommended use rates.
CropUse
CropUses:
brassicas, potatoes

Brassicas

600 g ai/ha

Potatoes

1 g ai/litre (tuber dip)

Physical Properties
Molecular weight:415.2; Physical form:Light yellow crystals. Density:1.739 g/cm3 (23 °C); Melting point:169.7-171.0 °C; Vapour pressure:9.9 × 10-7 mPa (40 °C); Partition coefficient(n-octanol and water):logP = 2.8?.5; Solubility:In water 2.9 mg/ kg (25 °C). In methanol 24, acetone 314, xylene 14, tetrahydrofuran 592 (all in g/ kg, 25 °C).; Stability:Stable between 35 °C and 80 °C in the dark for 90 d. Stable in acidic and in alkaline media.
Toxicology

Oral:Acute oral LD50 for male rats 180, female rats 132 mg/ kg. Percutaneous:Acute percutaneous LD50 for male and female rats >2000 mg/kg. Slight eye irritant; not a skin irritant (rabbits). Not a skin sensitiser. Inhalation: LC50 (4 h) for male and female rats 0.47 mg/l. ADI:( JMPR) 0.001 mg/ kg b.w. [1995].

Environmental Profile
Ecotoxicology: 
Algae: ErC50 (72 h) 4.2 mg/l.Bees: LD50 >200 μg/bee.Birds:Acute oral LD50 for bobwhite quail 66 mg/ kg.Daphnia: EC50 (48 h) 0.29 mg/l.Fish: TLm (96 h) for bluegill sunfish 1.2 mg/l.Worms:>9 kg/ ha. 

Environmental fate: 
Fate in soil:
Flusulfamide is not mobile in soil. It has a half-life of approximately 50 days.

Fate in aquatic systems:
Flusulfamide is readily degraded in water.

Transport Information
Signal Word:WARNING; Hazard Class:II(Moderately hazardous)

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