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    5. Products

      Alpha-cypermethrin

      Generic name: Alpha-cypermethrin
      Alias: α-Cypermethrin; alphametrin; bestox
      Chemical name:
      (1) 2,2-dimethyl-3-(2,2-dichlorovinyl)cyclopropanecarboxylate-α-cyano-(3-phenoxy)-benzylester
      (2) cyano-3-phenoxybenzyl 3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropane carboxylate
      Molecular formula: C22H19Cl2NO3
      Molecular weight: 416.3
      CAS RN: 67375-30-8 
      Physical and chemical properties:
      Appearance: White crystalline solid
      Assay: 97%
      Relative density: 1.12
      Vapour pressure: 23×10-2mPa/20°C
      Melting point: 75-81°C
      Flashing point: ≥80°C
      Solubility: Extremely low solubility in water, well soluble in ketones, alcohols, aromatics and other organic solvents.
      Stability: Stable in neutral and weak acid condition. Hydrolyze in strong alkali. Stable to light and heat.
      Acute toxicity: Rat percutaneous LD50: 500mg/kg; Rat per os LD50: 60 ~ 80mg/kg
      Chronic toxicity: No effect dose on rat is 60ppm.
      Application: Alpha-cypermethrin is a highly effective pyrethroid with 2 isomers. Cypermethrin has 8 isomers. The efficacy of alpha-cypermethrin is 2-3 times of cypermethrin with broad-spectrum. The dosage on crop pest is only 7-30 (g a.i/ha). This product has strong tag out and stomach toxicity effect and is mainly used to protect cotton, fruit tree, vegetable, flower and grain.
      Packing: 25kg/drum, 50kg/drum

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