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Common NameBeta-cypermethrin
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中文通用名高效氯氰菊酯
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IUPAC
: A reaction mixture comprising two enantiomeric pairs in ratio c. 2:3 (S)- a-cyano-3-phenoxybenzyl (1R)-cis-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate and (R)- a-cyano-3-phenoxybenzyl (1S)-cis-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate with (S)- a-cyano-3-phenoxybenzyl (1R)-trans-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate and (R)- a-cyano-3-phenoxybenzyl (1S)-trans-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate -
CAScyano(3-phenoxyphenyl)methyl 3-(2,2-dichloroethenyl)-2,2-dimethylcyclopropanecarboxylate; 2 parts of enantiomer pair [(1R)-1
a(S*),3 a] and [(1S)-1 a(R*),3 a] with 3 parts of enan -
CAS No.65731-84-2
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Molecular FormulaC22H19Cl2NO3
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Molecular Structure
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Category
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Activity
A broad spectrum insecticide used to control common pests in public health and veterinary situations.
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CropUse
cotton, vegetables, teas, rice ,orange, fruit ,grape ,soybean, tobacco, cole etc.
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FormulationSC = Suspension concentrate (=flowable concentrate)
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PremixTrichlorfon+beta-cypermethrin
Tebufenozide+beta-cypermethrin
Profenofos+beta-cypermethrin
Imidacloprid+beta-cypermethrin
Hexaflumuron+beta-cypermethrin
Fenoxycarb+beta-cypermethrin
Diflubenzuron+beta-cypermethrin
Dichlorvos+beta-cypermethrin
Chlorpyrifos+beta-cypermethrin
Chlorfluazuron+beta-cypermethrin
Beta-cypermethrin+triazophos
Beta-cypermethrin+thiosultap-monosodium
Beta-cypermethrin+SlMNPV
Beta-cypermethrin+quinalphos
Beta-cypermethrin+phoxim
Beta-cypermethrin+phosmet
Beta-cypermethrin+omethoate
Beta-cypermethrin+methomyl+phoxim
Beta-cypermethrin+methomyl
Beta-cypermethrin+malathion+phoxim
Beta-cypermethrin+malathion
Beta-cypermethrin+isocarbophos+phoxim
Beta-cypermethrin+isocarbophos
Beta-cypermethrin+hanpv
Beta-cypermethrin+fenobucarb
Beta-cypermethrin+endosulfan
Beta-cypermethrin+emamectin benzoate
Beta-cypermethrin+chlorpyrifos-methyl
Beta-cypermethrin+buprofezin
Beta-cypermethrin+bacillus thuringiensis
Beta-cypermethrin+acephate
Beta-cypermethrin+abamectin
Acetamiprid+beta-cypermethrin
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Physical PropertiesMolecular weight:416.3; Physical form:Tech. forms colourless or pale yellow crystals. Density:1.32 g/ml (theoretical), 0.66 g/ml (crystal powder) (20 °C); Composition:A mixture consisting of two enantiomeric pairs in ratio 2:3: (S) (1R)-cis and (R) (1S)-cis with (S) (1R)-trans and (R) (1S)-trans. Tech. grade beta Melting point:64-71 °C (peak 67 °C), (varies with even small - 1% - change in isomer ratio); Vapour pressure:1.8 ×10-4 (20 °C); Partition coefficient(n-octanol and water):logP >4.7 ( 7); Solubility:In water 51.5 (5 °C), 93.4 (25 °C), 276.0 (35 °C) (all in mg/l, 7). In isopropanol 11.5, xylene 349.8, dichloromethane 3878, acetone 2102, ethyl acetate 1427, petroleum ether 13.1 (all in /ml, 20 °C).; Stability:Stable to 150 °C; to air and sunlight; in neutral and slightly acidic media; epimerised in presence of base, hydrolysed in strongly alkaline media. 50 (extrapolated) 50 d ( 3, 5, 6), 40 d (
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ToxicologyOral:Acute oral
50 for female rats 166, male rats 178, female mice 48, male mice 43 / . Percutaneous:Acute percutaneous 50 for rats >5000 / ; mild skin and eye irritant (rabbits); non-sensitising to skin (guinea pigs). Inhalation: 50 (4 h) for rats >1.97 /l. ADI:0.02 Environmental ProfileEcotoxicology:
Algae:50 for Selenastrum capricornutum 56.2 /l.Bees: 50 (oral, 48 h) 0.0018 /bee (as 5% formulation); (contact, 24 h) 0.085 l/ (as 5% formulation); but not harmful at normal rate under field conditions.Birds:Acute oral 50 for quail 8030, pheasants 3515 5% formulation/kg. 50 (8 d) for pheasants and quail >5000 5% formulatiDaphnia: 50 (96 h) 0.00026 5% formulation/l.Fish: 50 (96 h) for carp 0.028, catfish 0.015, grass carp 0.035 5% formulation/l. Fish are not harmed under normal field conditions.
Environmental fate:
Soil:Soil50 10 d (lime-furred chernozom, 6.96). 50 in water 1.2 d. Transport InformationSignal Word:WARNING;
Hazard Class:II(Moderately hazardous)
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