The original drug is a white or milky white powder with a content of 96%, a density of 1.4 (20°C), a melting point of 47-50°C, and a vapor pressure of 2.2 mPa (60°C). At 20°C, the solubility in water is 13.6 mg/l; the solubility in various solvents is: acetone, chloroform, toluene greater than 1000 g/l, benzene, ethanol, ethyl acetate, and dichloromethane greater than 200 g/l. Alkane 12 g/l. Decomposition at 150°C, insensitive to light, stable at pH 5-9, 22°C, half-life in soil 30-45 days (23°C).