CAS #: 118712-89-3

Categories: Insecticides

Description:

NOMENCLATURE
Common name: Transfluthrin
IUPAC name: 2, 3, 5, 6-tetrafluorobenzyl (1R, 3S)-3-(2, 2-dichlorovinyl)-2, 2-dimethylcyclopropanecarboxylate
Roth: 2, 3, 5, 6-tetrafluorobenzyl (1R)-trans-3-(2, 2-dichlorovinyl)-2, 2-dimethylcyclopropanecarboxylate
Chemical Abstracts name: (1R-trans)-(2, 3, 5, 6-tetrafluorophenyl)methyl 3-(2, 2-dichloroethenyl)-2, 2-dimethylcyclopropanecarboxylate
EEC no.: 405-060-5

PHYSICAL CHEMISTRY
Composition: Tech. Is 93%.

Mol. Wt.: 371.2;

M. F.: C15H12Cl2F4O2;

Form: Colourless crystals.

M. P.: 32C; B. P.: 135C/0.1 mbar;

V. P.: 4.0x10-1 mPa (20C).

KOW: LogP = 5.46 (20C).

Henry: 2.60 Pa m3 mol-1 (calc. ).

S. G. /density: 1.5072 g/cm3 (23C).

Solubility: In water 5.7x10-5 g/l (20C). In organic solvents >200 g/l.

Stability: No decomposition after 5 h at 200C. DT50 in pure water (25C) >1 y (pH 5), >1 y (pH 7), 14 d (pH 9).

APPLICATIONS
Biochemistry: Effector on presynaptic voltage gate sodium channels in nerve membranes, causing knockdown effects in insects.
Mode of action: Insecticide active by inhalation and contact; Also repellent.
Uses: Fast-acting insecticide against mosquitoes, flies, cockroaches and whitefly.

Formulation types: AL; FU; VP; XX; Spraying cans; Vapouriser liquid; Mosquito coils.

MAMMALIAN TOXICOLOGY
Oral: Acute oral LD50 for male and female rats >5000, male mice 583, female mice 688, hens >5000 mg/kg.
Skin and eye: Acute percutaneous LD50 (24 h) for male and female rats >5000 mg/kg.
Inhalation: LC50 (4 h) for male and female rats >513 mg/m3 air.
NOEL: (24 mo) for male and female rats 20 ppm, for male and female mice 100 ppm.
Toxicity class: WHO (a. I. ) III (Table 5)
EC hazard: Xi; R38| N; R50, R53

Packing: 25kgs/Iron drum

ECOTOXICOLOGY
Birds: Acute oral LD50 for Virginian tree quail (Colinus virginianus) and canary birds (Serinus canarius) >2000 mg/kg.
Fish: LC50 (96 h) for golden orfe 1.25, rainbow trout 0.7 ug/l.
Daphnia: LC50 (48 h) 0.0017 mg/l.
Algae: EC50 (96 h) for Scenedesmus subspicatus >0.1 mg/l.

ENVIRONMENTAL FATE
Animals: Tetrafluorobenzoic acid and the glucuronate of tetrafluorobenzyl alcohol are formed.
Soil/Environment: In aquatic ecosystems, tetrafluorobenzyl alcohol and tetrafluorobenzoic acid are formed. DT50 in water 2 d (in light), 8 d (in dark).