Tetramethrin (Phthalthrin,  (1,3-dioxo-4,5,6,7-tetrahydro-isoindol-2-yl)methyl-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate, CAS#7696-12-0) is a first-generation synthetic pyrethroid. Tertamethrin is an pesticide with powerful and rapid knockdown action to fly, mosquito and other household pests and expelling action to roach but no lethal effect, in mixture with other lethal pesticides in aerosol and spray against household and livestock pests (fly, mosquito and etc), garden and food storage pests. It is one of most popular household insecticides recommended by WHO.

Tetramethrin is one of popular insecticides recommended by World Health Organization. It is a potent insecticide with a rapid knowdown to household pests (mosquito, fly) and expelling action to roach but no lethal effect, in mixture with other insecticides against household pests (mosquito, fly, roach) garden and food-storage pests.
The dosage of active ingredient is recommended as follows:

Bio-effect:

1. Avoid mixture with food and forage, and avoid reach of children.
2. Use respirator and glove when handling, clean completely with soap and water when splashed into skin.
3. Destroy and bury waste drum or dip it into alkali liquid for several days for recycling uses.
4. Storage in dry, cold area and avoid light.