Chemical name: (RS)-α-cyano-4-fluoro-3-phenoxybenzyl (1RS,3RS;1RS,3SR)-3- (2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate
CAS no.: 68359-37-5

Structural formula:

Molecular formula: C₂₂H₁₈Cl₂FNO₃
Physical & chemical property:
Beta-cyfluthrin is a mixture of four diastereoisomers and their ratio, expressed as a percentage of the sum of the four diastereoisomers, shall be:
diastereoisomer I (1R,3R,aR + 1S,3S,aS = 1:1; cis): maximum 2.0 %
diastereoisomer II (1R,3R,aS + 1S,3S,aR = 1:1; cis): 30.0 – 40.0 %
diastereoisomer III (1R,3S,aR + 1S,3R,aS = 1:1; trans): maximum 3.0 %
diastereoisomer IV (1R,3S,aS + 1S,3R,aR =1:1; trans): 57.0 – 67.0 %
Physical State: Colourless crystals; (technical is a white powder with slight characteristic smell)
Melting point: 81°C(II), 106°C(IV)
Density: 1.34g/cm3 (22°C)
Solubility: In water: 2.1 (II), 1.2(IV) (both in μg/l 20°C). In dichloromethane and toluene, both pairs >200g/l (20°C).
Stability: Thermally stable at room temperature.
Specification: 95%TC，2.5%EC
Uses: Non-systemic insecticide with contact and stomach action. Acts on the nervous system, with rapid knockdown and long residual activity. Insecticide effective against Lepidoptera, Coleoptera, Homoptera and Hemiptera on cotton, fruit，vegetables， cereals and other crops, at 7.5-20g/ha. Also against migratory locusts and grasshoppers; and in animal health.