Detailed Product Description

• Appearance: Pure isomers of cypermethrin form colorless crystals. When mixed isomers are present, cypermethrin is a viscous semi-solid or a viscous, yellow liquid
• Chemical Name: (R,S)-alpha-cyano-3-phenoxybenzyl(1RS)-cis,trans-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropane-carboxylate
• CAS Number: 52315-07-8
• Molecular Weight: 416.30
• Water Solubility: 0.01 mg/L @ 20 C; insoluble in water
• Solubility in Other Solvents: methanol v.s.; acetone v.s.; xylene v.s
• Melting Point: 60-80 C (pure isomers)
• Vapor Pressure: 5.1 x 10-7 nPa @ 70 C
• Partition Coefficient: 6.6020
• Adsorption Coefficient: 100,000
• Trade and Other Names: Trade names include Ammo, Arrivo, Barricade, Basathrin, CCN52, Cymbush, Cymperator, Cynoff, Cypercopal, Cyperguard 25EC, Cyperhard Tech, Cyperkill, Cypermar, Demon, Flectron, Fligene CI, Folcord, Kafil Super, NRDC 149, Polytrin, PP 383, Ripcord, Siperin, Stockade, and Super
• Regulatory Status: Many products containing cypermethrin are classified as Restricted Use Pesticides (RUP) by the EPA because of cypermethrin's toxicity to fish. Restricted Use Pesticides may be purchased and used only by certified applicators. Cypermethrin is classified toxicity class II - moderately toxic. Some formulations are toxicity class III - slightly toxic. Pesticides containing cypermethrin bear the Signal Word WARNING or CAUTION on the product label, depending on the particular formulation.
• Introduction: Cypermethrin is a synthetic pyrethroid insecticide used to control many pests, including moth pests of cotton, fruit, and vegetable crops. It is also used for crack, crevice, and spot treatment to control insect pests in stores, warehouses, industrial buildings, houses, apartment buildings, greenhouses, laboratories, and on ships, railcars, buses, trucks, and aircraft. It may also be used in non-food areas in schools, nursing homes, hospitals, restaurants, hotels, in food processing plants, and as a barrier treatment insect repellent for horses. Technical cypermethrin is a mixture of eight different isomers, each of which may have its own chemical and biological properties. Cypermethrin is light stable. It is available as an emulsifiable concentrate or wettable powder.
• Formulation: Technical cypermethrin is a mixture of eight different isomers, each of which may have its own chemical and biological properties. Cypermethrin is light stable. It is available as an emulsifiable concentrate or wettable powder.
• Fate in humans and animals: In humans, urinary excretion of cypermethrin metabolites was complete 48 hours after the last of five doses of 1.5 mg/kg/day.Studies in rats have shown that cypermethrin is rapidly metabolized by hydroxylation and cleavage, with over 99% being eliminated within hours. The remaining 1% becomes stored in body fat. This portion is eliminated slowly, with a half-life of 18 days for the cis-isomer and 3.4 days for the trans-isomer.