TechproductBeta-cypermethrin 97% tech

Tech. form colorless or pale yellow crystal. M.p. 64-71°C (peak 67°C), ( varies with even small-1%-change in isomer ratio. In water 51.5 (5°C), 93.4 (25°C), 270.6 (35°C) (all in ug/l, pH7). In isopropanol 11.5, xylene 349.8, dichloromethane 3878, acetone 2102, ethyl acetate 1427, petroleum ether 13.1 (all in mg/ml, 20°C). Stable to 150°Cto air and sunlight; in neutral and slight acidic media; epidermises in presence of base, hydrolysed in strongly alkaline media. DT50 (extrapolated) 50 d (pH 3, 5. 6), 40 d (pH 7), 20 d (pH 8), 15 d (pH 9) (all at 25°C).

reaction mixture comprising the enantiomeric pair (R)--cyano-3-phenoxybenzyl (1S,3S)-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate and (S)--cyano-3-phenoxybenzyl (1R,3R)-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate in ratio approximately 2:3 with the enantiomeric pair (R)--cyano-3-phenoxybenzyl (1S,3R)-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate and (S)--cyano-3-phenoxybenzyl (1R,3S)-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylateorreaction mixture comprising the enantiomeric pair (R)--cyano-3-phenoxybenzyl (1S)-cis-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate and (S)--cyano-3-phenoxybenzyl (1R)-cis-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate in ratio approximately 2:3 with the enantiomeric pair (R)--cyano-3-phenoxybenzyl (1S)-trans-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate and (S)--cyano-3-phenoxybenzyl (1R)-trans-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate

Acute oral LD50 for female rats 166, male rats 178, female mice 48, male mice 43 mg/kg. Acute percutaneous LD50 for rats>5000mg/kg; mild skin and eye irritant (rabbits); non-sensitizing to skin (guinea pigs). Inhalation LC50 (4h) for rats >1.97 mg/l. NOEL (2y) for rats 250 mg/kg diet; (90d) for rats 100 mg/kg diet.

Non-systemic insecticide with contact and stomach action.

It can be used against a wide range of insect pest in public health (e.g. flies, cockroaches, mosquitoes, fleas, lice, bugs) and in veterinary application (ectoparasitic ticks and mites). In plant protection, it is effective against Coleoptera and Lepidoptera and gives good protection against Orthoptera, Diptera, Hemiptera, and Homoptera. Mainly used in alfalfa, cereals, cotton, grapes, maize, oilseed rape, pome fruit, potatoes, soya beans, sugar beet, tobacco and vegetables.

Do not use in mixture with other alkali pesticides.If swallowed, get medical attention. If on skin, wash with plenty of soap and water.Do not apply this product nearby lake , rivers, permanent streams, marshes or natural ponds.