CHEMICAL IDENTIFICATION Product name: Prallethrin Chemical name: (S)-2-methyl-3-(2-propynyl)-4-oxocyclopent-2-enyl-(1R)cis-trans-2,2-dimethyl-3-(2-methyl-1-propenyl)cyclopropanecarboxylate Chemical family: Synthetic Pyrethroids CAS number: 23031-36-9 Molecular formula: C19H24O3 Molecular weight: 300.40 PHYSICAL CHEMISTRY Purity: 93% Min. Appearance: Yellow to brown viscous liquid. Odour: Faint characteristic odour. Melting point: From -16 to -18 ℃ (freezing point) Boiling point: 313.5℃ Flash point: 133℃ (Seta closed cup) Density: 1.03 g/mL (20℃) Vapor pressure: 4.2 x 10-3 Pa (25℃) Ignition Temperature: 354℃ Octanol/Water Partition Coefficient: Log Pow = 4.49 (25℃) Solubility: Soluble in most organic solvents. Solubility in water is 8 mg/L (25℃). Stability: Stable in weak acidic and neutral medium, but easily hydrolyze in alkaline solution; unstable to light. Can be store 2 years in normal condition. PROPERTIES Prallethrin has high vapor pressure. It is used for prevention and control of mosquito, fly and roach etc. In knok down and killing active, it is 4 times highter than d-allethrin. Especially it has the function to wipe out roach. It's therefore used as active ingredient mosquito-repellent insect. Electro-thermal, mosquito repellent incense, aerosol and spraying products. The used amount in mosquito-repellent incense is 1/3 of that d-Allethrin. APPLICATIONS Coils: The recommended dosages for use in coils are between 0.05% and 0.4%. Mats: 10 mg/mat to 40 mg/mat. Center temperature of heater controlled between 125℃-135℃. Liquid electric thermal incense: Content 0.8% to 1.6% in mixture with stabilizer. Aerosols: Content 0.15% to 0.6% in mixture with lethal agent, synergist and emulsifier.