Specification :

Transfluthrin

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
Chemica l Abstracts name: ( 1R-trans) -( 2, 3, 5, 6-tetrafluorophenyl) methyl 3-( 2, 2-dichloroethenyl) -2, 2-dimethylcyclopropanecarboxylate
CAS RN: [ 118712-89-3]
EEC no.: 405-060-5

PHYSICAL CHEMISTRY
Composition: Tech. is 93% . Mol. wt.: 371.2; M.f.: C15H12Cl2F4O2; Form: Colourless crystals. M.p.: 32 º C; B.p.: 135 º C/ 0.1 mbar; V.p.: 4.0x 10-1 mPa ( 20 º C) . KOW: logP = 5.46 ( 20 º C) . Henry: 2.60 Pa m3 mol-1 ( calc.) . S.g./ density: 1.5072 g/ cm3 ( 23 º C) . Solubility: In water 5.7x 10-5 g/ l ( 20 º C) . In organic solvents > 200 g/ l. Stability: No decomposition after 5 h at 200 º C. DT50 in pure water ( 25 º C) > 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

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) .