The introduction of Fipronil ：
English generic name: Fipronil
Trade name :Regent
Chemical name : (RS) -5-amino-1 -(2, 6-dichloro-A,a, A-trifluoro-p-tylene) -4-trifluoromethylsulfonyl pyrazole-3-nitrile, English chemical name :( ) - 5 - amino - 1 - (2, 6 - dichloro - a, a, a, trifluoro - P - tolyl) - 4 - frifluoromethylsulfinylpyrazole - 3 - Carbonitrile,
Molecular formula :C12H4Cl2F6N4OS,
Molecular weight :437.2
CAS No. :120068-37-3
Physical and chemical properties:
The pure product is a white solid with a melting point of 200~201℃ and a density of 1.477~1.626(20℃). Vapor pressure 3.7×10-7pa(20℃); Distribution coefficient (25℃)logP=4.0. Solubility in water (20℃, mg/L)1.9(distilled water), 1.9(PH=5), 2.4(PH=9); Solubility in other solvents (20℃, g/L) : acetone 545.9, dichloromethane 22.3, toluene 3.0, hexane<0.028. It is stable in water with PH=5 and 7, slowly hydrolyzes at PH=9, DT50 lasts about 28 days, slowly degrades under sunlight, but rapidly decomposes under sunlight in aqueous solution.
The effects and control objects of fipronil are as follows:
1, the role of Fipronil: Fifenil, an organic compound, is a phenylpyrazole insecticide with a wide insecticidal spectrum. It mainly acts as stomach poison to pests, and has both contact and certain absorption effects. Its mechanism of action is to hinder the chloride metabolism controlled by γ-aminobutyric acid in insects, so it has high insecticidal activity against aphids, leafhoppers, plantworms, lepidoptera larvae, flies and coleoptera. No harm to crops. Fipronil is widely used as a sanitary insecticide. Mainly used to prevent and kill cockroaches, ants and other harmful organisms.
2, Fipronil control objects: The main control objects of the drug are caterpillar, root worm, bulb nematode, slime, rice borer, cotton bollworm, brown planthopper, rice weevil, cabbage moth, cabbage moth, beetle, coccidia, Trichomonas, fruit tree mosquitoes, wheat tube aphis and other pests, the recommended dosage is 12.5-150 g/ha.
How to use Fipronil ?
Fipronil is registered as a Hygienic medicine, because it is extremely toxic to bees, in order to protect other beneficial organisms, the state has explicitly prohibited the use of such drugs in food crops, cash crops, fruit and vegetable crops, it is recommended not to use. Fipronil is now used in seed coating agent, 5% fipronil suspension, generally used by professionals in the elimination company for indoor fly control and indoor insect control.
When applying, avoid splashing the liquid in the eyes and on the skin, and prevent dust, drops or steam from entering the respiratory tract. If the liquid gets on the skin, wash it off immediately with soap and water. Keep the medicine out of reach of children and in a cool, ventilated place. Keep away from food and feed and keep it locked.
