Deltamethrin

Deltamethrin

Short Description:

Deltamethrin (molecular formula C22H19Br2NO3, formula weight 505.24) is a white oblique policy-shaped crystal with a melting point of 101~102°C and a boiling point of 300°C. It is almost insoluble in water at room temperature and soluble in many organic solvents. Relatively stable to light and air. It is more stable in acidic medium, but unstable in alkaline medium.


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Deltamethrin (molecular formula C22H19Br2NO3, formula weight 505.24) is a white oblique policy-shaped crystal with a melting point of 101~102°C and a boiling point of 300°C. It is almost insoluble in water at room temperature and soluble in many organic solvents. Relatively stable to light and air. It is more stable in acidic medium, but unstable in alkaline medium.

Deltamethrin is the most toxic of pyrethroid insecticides. It is 100 times as toxic to insects as DDT, 80 times as much as carbaryl, 550 times as much as malathion, and 40 as much as parathion. Times. It has contact killing and stomach poisoning effect, rapid contact killing effect, strong knockdown force, no fumigation and systemic effect, and repellent effect on some pests at high concentrations. Long duration (7~12 days). Formulated into emulsifiable concentrate or wettable powder, it is a medium insecticide. It has a wide insecticidal spectrum and is effective against a variety of pests such as Lepidoptera, Orthoptera, Thysanoptera, Hemiptera, Diptera, Coleoptera, etc., but has very low control effect against mites, scale insects, and bugs. Or it is basically ineffective, and it will also stimulate the reproduction of mites. When insects and mites are concurrent, they should be mixed with special acaricides.

Deltamethrin belongs to the poisoning category. Skin contact can cause irritation and red papules. In acute poisoning, the mild cases may have headache, dizziness, nausea, vomiting, loss of appetite, and fatigue, and severe cases may also have muscle fasciculations and convulsions. It has a stimulating effect on human skin and eye mucous membranes, and is highly toxic to fish and bees. Insects that are resistant to DDT are cross-resistant to deltamethrin.


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