Insecticide

Beta-cypermethrin

Chemical: 高效氯氰菊酯
Use category: Insecticides > Pyrethroid insecticides
Content & formulation: 95%,4.5%EC
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  • Chemistry Identity
  • Technical sheet
  • Application

CAS No.】: 91465-08-6
CAS】: (R)-cyano(3-phenoxyphenyl)methyl (1S,3S)-rel-3-[(1Z)-2-chloro-3,3,3-trifluoro-1-propenyl]-2,2-dimethylcyclopropanecarboxylate
Molecular Formula】: C23H19ClF3NO3

Molecular 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.

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).


 

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