Shaanxi BLOOM Tech Co., Ltd. is one of the most experienced manufacturers and suppliers of permethrin powder cas 52645-53-1 in China. Welcome to wholesale bulk high quality permethrin powder cas 52645-53-1 for sale here from our factory. Good service and reasonable price are available.
Permethrin powder is an organic compound with molecular formula of C21H20Cl2O3 and molecular weight of 391.288. The pure product is a solid, and the technical drug is a brown yellow viscous liquid or semi-solid. Permethrin (permethrine) is stable under acidic and neutral conditions, and decomposes in alkaline medium; The half-life in water is 500h, in fertile soil is 15d (20 ℃), under visible light and ultraviolet radiation, the half-life is about 4d, and the half-life in weak light can reach 3 weeks; The agent is resistant to rain wash. It is an insect killing compound and nerve agent.
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Chemical Formula |
C21H20Cl2O3 |
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Exact Mass |
390 |
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Molecular Weight |
391 |
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m/z |
390 (100.0%), 392 (63.9%), 391 (22.7%), 393 (14.5%), 394 (10.2%), 392 (2.5%), 395 (2.3%), 394 (1.6%) |
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Elemental Analysis |
C, 64.46; H, 5.15; Cl, 18.12; O, 12.27 |
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Permethrin, as a classic pyrethroid insecticide, has become a core chemical substance in the fields of global agriculture, public health, animal health, and personal protection due to its high efficiency, low toxicity, and broad-spectrum properties since its first synthesis in 1973. Its molecular formula is C21H20Cl2O3, with a molecular weight of 391.3 and a CAS number of 52645-53-1. It is a brownish white crystal at room temperature and is difficult to dissolve in water but easily soluble in organic solvents.
1. Crop pest control
Permethrin powder is a versatile pest control tool in agriculture, with efficient contact and stomach toxicity against Lepidoptera (such as cotton bollworm and cabbage caterpillar), Coleoptera (such as yellow striped flea beetle), Homoptera (such as aphids), Hemiptera (such as green bug) and other pests. Its mechanism of action is to interfere with the sodium ion channels of insect axons, causing obstruction of nerve signal transmission and ultimately leading to insect paralysis and death.
Typical application cases:
Cotton pests: In the peak incubation period of cotton bollworm eggs, use 10% permethrin emulsifiable concentrate 1000~1250 times of liquid spray, which can control secondary pests such as bridge worms and leaf rollers at the same time.
The control of cotton aphids requires the use of 2000-3000 times the amount of liquid during the peak period of adult and nymph infestation, but the effectiveness against resistant cotton aphids is poor.
Vegetable pests: control cabbage caterpillar, diamondback moth, Spodoptera litura, etc., use 10% emulsifiable concentrate 20-40ml per mu, add 60kg water and spray, with a duration of 7-10 days.
Fruit tree pests: to control peach fruit borer, citrus leafminer, etc., 3.75ml of 10% emulsifiable concentrate per 100m2 and 5.52kg of water spray can reduce the hole boring rate of fruit by more than 80%.
2. Soil treatment and seed coating
Chlorfenapyr can form a long-lasting protective barrier through soil treatment or seed coating techniques. For example, compounding permethrin with polyvinyl alcohol to make a seed coating agent can prevent and control underground pests such as grubs and nematodes, while promoting seed germination. In corn cultivation, the emergence rate of seeds coated with chlorpyrifos increased by 15%, and the aphid damage rate during the seedling stage decreased by 90%.
3. Resistance management strategy
In response to the development of resistance of pests to traditional pyrethroid pesticides, chlorpyrifos is often used in combination with neonicotinoids (such as imidacloprid) and insect growth regulators (such as fipronil). For example, the formulation of chlorpyrifos and imidacloprid in a 1:5 ratio showed a 40% increase in the control effect on rice planthoppers compared to a single agent, and the development rate of resistance was slowed down by three times.
Public Health Sector: Disease Transmission Prevention and Pest Control
1. Vector control
Chlorfenapyr is a key weapon in blocking the spread of vector borne diseases such as malaria, dengue fever, and Zika virus. It effectively reduces the population density of vector organisms such as mosquitoes, ticks, and fleas through contact killing and evasion.
Typical application scenarios:
Indoor residual spraying (IRS): In the high incidence area of malaria in Africa, spraying 2% permethrin suspension on the walls of houses can reduce the density of mosquitoes by 90% and the incidence rate of malaria by 60%.
Mosquito net treatment: Long lasting mosquito nets (LLINs) impregnated with chlorpyrifos can maintain their mosquito control effect for 3 years. According to data from the World Health Organization (WHO), widespread use of LLINs has reduced malaria mortality rates in African children by 50%.
Tick prevention and control: Spraying permethrin in forest, grassland and other tick habitats can reduce tick density by 85% and the incidence rate of Lyme disease by 70%.
2. Urban pest management
Permethrin powder is a core component of comprehensive management of urban pests such as cockroaches, flies, and ants. It achieves precise killing through various dosage forms such as aerosols, powders, baits, etc.
Innovative application cases:
Intelligent trapping system: By combining chlorpyrifos with pheromones, a self responsive cockroach trap has been developed, with a killing efficiency three times higher than traditional bait.
Drone spraying: Using drones to spray chlorpyrifos microcapsule suspension in landfills can cover complex terrain and achieve a fly density control effect of 95%.
3. Emergency health incident handling
After natural disasters such as floods and earthquakes, chlorpyrifos can be used to quickly control the growth of vector organisms. For example, after the rainstorm disaster in Henan in 2021, permethrin water emulsion was used to spray temporary settlements, effectively blocking the spread of intestinal infectious diseases such as cholera and dysentery.
1. Prevention and control of livestock ectoparasites
Chlorfenapyr is the preferred drug for preventing and treating livestock ectoparasites such as ticks, mites, and maggots. It can provide a protection period of up to 4 weeks through transdermal absorption or local application.
Typical application scheme:
Cattle and sheep deworming: Using 1% chlorpyrifos as a watering agent, pour along the back at a dose of 10 milliliters per 100 kilograms of body weight, which can prevent and treat cowhide fly maggots and sheep mite diseases, and increase weight gain rate by 12%.
Pet Care: A dropper formulated with chlorpyrifos and moxifloxacin for the prevention and control of ectoparasites in dogs and cats. It can maintain its effectiveness for one month with a 99% kill rate against fleas and ticks.
2. Control of avian parasites
In the chicken industry, chlorpyrifos can be used to prevent and control parasites such as chicken skin mites and feather mites. Adding chlorpyrifos powder at a ratio of 0.1% to the bedding can reduce mite density by 90% and increase egg yield by 8%.
3. Prevention and control of fishery parasites
Chlorfenapyr has a highly effective killing effect on parasites such as roundworms and third generation worms in fish. Soaking in a 0.02mg/L chlorpyrifos solution for 30 minutes in a fish fry cultivation pool reduced the parasite infection rate from 85% to 5%, and showed no significant toxicity to the fish fry.
1. Mosquito resistant clothing technology
Chlorfenapyr is currently the only textile mosquito repellent approved by the US Environmental Protection Agency (EPA). It achieves long-lasting sustained release through microcapsule encapsulation technology, and can still maintain 80% mosquito repellent effect after 50 washes.
Typical product applications:
Military equipment: Since the 1990s, the US military has used permethrin treated uniforms as a standard configuration, reducing the mosquito bite rate in the battlefield by 90% and the incidence rate of malaria by 85%.
Civilian outdoor clothing: Stormtroopers, tents, and other outdoor equipment treated with chlorpyrifos can effectively prevent mosquito, tick, and ant bites, and reduce the risk of infections such as Lyme disease and Zika virus.
2. Travel protective equipment
Chlorfenapyr is widely used in the development of travel protective equipment, such as mosquito bracelets, mosquito repellent patches, etc. It forms a personal protective circle through transdermal absorption or local evaporation, with a continuous protection time of up to 8 hours.
3. Protection for special populations
Develop low concentration chlorpyrifos protective products for sensitive populations such as children and pregnant women. For example, 0.5% permethrin anti mosquito spray for children has been clinically verified to be safe and effective for infants over 6 months old, and the anti mosquito effect can reach 6 hours.
1. Wool anti-corrosion and moth proof
Chlorfenapyr is the core chemical substance for the anti-corrosion and anti moth properties of wool products. It forms a protective film on the surface of wool fibers through immersion or spraying processes, which can inhibit the erosion of pests such as moths and bark beetles, and extend the service life of textiles by 3-5 years.
Typical process case:
Wool carpet treatment: By compounding chlorpyrifos with silane coupling agent, a nano scale anti moth finishing agent has been developed, which can improve the anti moth effect of carpets by 2 times without affecting the texture of wool.
Military blanket protection: The military blanket treated with chlorpyrifos microcapsule technology can be stored in a humid and hot environment for 1 year without insect infestation, meeting the needs of extreme environmental use.
2. Wood anti-corrosion
Permethrin powder can be used for wood anti-corrosion treatment to prevent pests such as termites and longhorn beetles from corroding. The preservative compound of chlorpyrifos and boric acid can maintain its anti-corrosion effect for more than 20 years by treating wood with high-pressure impregnation process.
3. Protection of electronic components
In the manufacturing of electronic components, chlorpyrifos can be used to control storage pests such as catfish and book lice. Adding chlorpyrifos microcapsules to electronic component packaging materials can form an active protective system, reducing component failure rates by 15%.
Use method of permethrin:
1. Prevention and control of cotton pests The cotton bollworm is spray with 10% emulsifiable concentrates 1000-1250 times of liquid at the peak of egg hatching. The same dosage can control pink bollworm, bridge worm and leaf curler. The cotton aphid can be effectively controlled by spray 10% emulsifiable concentrates 2000-4000 times during the occurrence period. It is necessary to increase the dosage for the control of aphids.
2. Prevention and control of vegetable pests The cabbage caterpillar and diamondback moth shall be controlled before the third age, and 10% emulsifiable concentrate shall be spray with 1000-2000 times of liquid. It can also cure vegetable aphids.
3. Control of fruit tree pests The citrus leafminer is spray with 1250-2500 times 10% emulsifiable concentrate at the initial stage of shoot release. It can also control citrus pests, such as citrus pests, and is ineffective against citrus mites. When the egg rate reaches 1% during the peak incubation period, the peach fruit borer shall be controlled and spray with 10% emulsifiable concentrate 1000-2000 times. At the same dose and at the same time, it can also control pear fruit borer and fruit tree pests such as leafroller and aphid, but it has no effect on leaf mites.
4. Prevention and control of tea pests Tea geometrid, tea slender moth, tea caterpillar, tea prickly moth, spray with 2500-5000 times liquid at the peak of 2-3 instar larvae, and also control green leafhopper and aphid.
5. Prevention and control of tobacco pests The peach aphid and tobacco budworm were spray evenly with 10-20mg/kg liquid medicine during the occurrence period.
6. Prevention and control of sanitary pests
(1) The housefly can be effectively killed by spraying 10% emulsifiable concentrate 0.01-0.03ml/m3 at permethrin powder habitat.
(2) Mosquitoes use 10% emulsifiable concentrates 0.01-0.03ml/m3 spray at mosquito activity sites. For young mosquitoes, 10% emulsifiable concentrates can be paired into 1mg/L and sprayed in the water pit where young mosquitoes breed, which can effectively kill the larvae.
(3) Cockroaches are used as retention spray on the surface of the cockroach activity site, and the dosage is 0.008g/m2.
(4) Termites can be effectively prevented by permethrin using spray on bamboo and wood surfaces that are vulnerable to termites, or by pouring ant nests with 800-1000 times of 10% emulsifiable concentrates.
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