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Comprehensive introduction to the biological characteristics and application scenarios of Red Sun Chlorpyrifos (C9H11Cl3NO3PS): As an organophosphorus insecticide, this broad-spectrum product provides contact, stomach, and moderate fumigation activity by disrupting the nervous system of target pests. It is highly effective in agricultural pest control, particularly for managing underground pests in peanuts, contributing to reliable crop protection and improved yield.
Apply evenly to the soil at the time of peanut sowing for consistent pest management.
Cucurbits, lettuce seedlings, and tobacco are sensitive to this insecticide; avoid direct exposure to prevent phytotoxicity.
During field application, prevent granules from contacting crop foliage to avoid damage.
Do not apply in windy or rainy conditions to ensure safety and efficacy.
Establish warning signs after use; the re-entry interval for humans and animals is 24 hours.
Limit application to once per growing season, with a single soil treatment at peanut sowing recommended.
Parameter | Details |
Appearance | White crystalline solid |
Solubility in Acetone | Soluble |
Solubility in Benzene | Soluble |
Solubility in Chloroform | Soluble |
Solubility in Methanol | 43% at 35°C |
Solubility in Iso-octane | 79% at 35°C |
Solubility in Water | Low, mg/kg level |
Stability | Stable under storage conditions |
Half-life at pH 6 | 1930 days in methanol-water solution |
Half-life at pH 9.96 | 7.2 days in methanol-water solution |
Odor (Industrial grade) | Thiol-like smell |
Chlorpyrifos appears as a white crystalline solid and remains stable at room temperature. The industrial grade has a thiol-like odor. It has a melting point of 42.5–43.5°C and a vapor pressure of 2.493 × 10³ Pa at 25°C.
Chlorpyrifos dissolves in organic solvents such as acetone, benzene, chloroform, methanol, and iso-octane. At 35°C, solubility in methanol is 43% and in iso-octane is 79%, while solubility in water is very low, measured in mg/kg.
The product is stable under storage conditions and in acidic media but decomposes in alkaline environments. In methanol-water solution at pH 6, the hydrolytic half-life is 1930 days, while at pH 9.96, the half-life decreases to 7.2 days.
Chlorpyrifos reacts with copper and brass, leading to corrosion. The thiol-like odor in industrial grade material reflects the presence of reactive groups that influence handling and storage requirements.
Chlorpyrifos is designed for B2B buyers seeking effective crop protection. The following features highlight its performance, safety, and supply reliability.
Chlorpyrifos acts on the nervous system of insects. It delivers effective knockdown within hours after application. Field data show strong control of soil and foliar pests across crops. This fast action reduces crop damage and ensures stable yield.
Chlorpyrifos shows low solubility in water and binds to soil particles. Residues degrade under typical conditions, reducing environmental persistence. The favorable profile supports crop rotation and minimizes soil impact.
The product is registered for use across multiple crops. It covers corn, cotton, soybean, peanut, sugar beet, fruit trees, and vegetables. Its versatility allows integration into diverse agricultural markets, including large-scale farming.
Chlorpyrifos is available in several formulations. It can be tank-mixed with selected herbicides and insecticides. This flexibility helps farmers design integrated pest management programs and reduce resistance development.
Red Sun operates multiple production bases with certified facilities. Annual capacity supports consistent delivery to global B2B buyers. The company follows ISO and ESG standards, ensuring traceability and compliance in supply.
Compared with alternative insecticides, Chlorpyrifos offers savings in active ingredient costs. Buyers can reduce procurement expenses while maintaining reliable pest control performance. This improves long-term competitiveness in input sourcing.
Chlorpyrifos is a non-systemic, broad-spectrum insecticide. It works through contact, stomach, and fumigation action. The following scenarios outline its main applications in agriculture, storage, household, and veterinary use.
Chlorpyrifos is widely applied on corn, cotton, soybean, peanut, sugar beet, fruit trees, and vegetables. It helps manage soil and foliar insect pests and supports crop protection programs.
The product controls mosquitoes, flies, cockroaches, and termites. Its contact and fumigation effects make it suitable for pest management in living spaces and structures.
Chlorpyrifos is used to control insect infestations in warehouses and storage facilities. It helps protect stored grain from damage and loss.
The insecticide is applied to control external parasites on livestock. It reduces the spread of pests affecting animal health and improves farm management practices.
Chlorpyrifos is commonly formulated as emulsifiable concentrate or granules. It is compatible with non-alkaline pesticides, enabling flexible use in integrated programs.
Chlorpyrifos requires careful handling due to its toxicity to mammals, insects, and aquatic species. The following data summarize safety guidelines and exposure limits for users and the environment.
Oral LD50 values are 163 mg/kg for male rats, 135 mg/kg for female rats, and 500 mg/kg for guinea pigs. The dermal LD50 for rabbits is 2000 mg/kg.
Chlorpyrifos is highly toxic to bees. It is also harmful to fish and shrimp, requiring strict control to prevent contamination of aquatic environments.
The maximum allowable concentration in workplace air is 0.2 mg/m³. Protective equipment is required to reduce inhalation and skin exposure.
Maximum residue levels are 0.3 mg/kg in citrus, 0.05 mg/kg in cottonseed and oil, 0.1 mg/kg in cabbage and lettuce, and 0.1 mg/kg in rice.
