Raw materials: pyrethrum flower Physical and chemical features: it is easy to dissolve in ethanol, methanol, petroleum ether, carbon tetrachloride, dichloromethane, nitryl, methane and other organic solvents. Active ingredients: pyrethrin ?&? If you are interesting, please feel free to contact me, jwj2008 at 126 dot com. Thanks, Jane jiang, Beijing kingbo biotech co., ltd