Structure:

Alpha-cypermethrin is a crystalline powder. Solubility(25C): 0.005-0.01 mg/litre water;620 g/litre acetone; 515 g/litre cyclohexanone; 7 g/kg hexane; 351 g/litre xylene. Boiling point :200C. Melting Point: 80.5C. Vapor Pressure(20C): 170 nPa. Partition Coefficient: log Pow 5.16 .

Alpha-cypermethrin have moderate acute oral toxicity and has low dermal toxicity.Undiluted technical alpha-cypermethrin was minimally irritating when applied as a single occluded dose for 24 h to intact and abraded rabbit skin. Undiluted formulations were tested for their eye irritancy potential in groups of six rabbits using the Draize test.Alpha-cypermethrin is not a skin sensitizer in guinea-pigs.

Alpha-cypermethrin is a potent insecticide effective against a wide range of pests, particularly Lepidoptera and Coleoptera in citrus, cotton,forestry, fruit, rice, soybeans, tomatoes, vegetables, grapes and other crops, at a concentration of 5-30 g active ingredient per ha.Good control of plant-sucking Hemiptera can also be obtained if the insecticide is applied before populations have become established. It also controls soil-dwelling Lepidoptera.