Flusulfamide

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Chemical Identification | General Product Information | Physical & Safety Data

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

General Product Information

Category

Fungicides > Anilide fungicides

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 & Safety Data

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: E_rC₅₀ (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)