Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise focused on industry of fine chemicals research and develop, produce and sale. Shandong Huashang Chemical Co., Ltd. is located in Shan Dong Ji Nan China. we have the ability to provide you high quality products. More than 90 % of our products are exported to developed countries and regions such as north America, Europe, Japan, South Korea and the Middle East.
Fluazuron
1. Basic Information
Name: Fluazuron
Alias: N-[[[4-chloro-3-[(3,4-dichlorophenyl)oxy]phenyl]amino]carbonyl]-2,6-difluorobenzamide
CAS No.: 86811-58-7
Molecular Formula: C20H11Cl3F2N2O3
Molecular Weight: 471.67
Category: Benzoylurea insect growth regulator veterinary pesticide, ectoparasiticide raw material, animal acaricide API
2. Physical and Chemical Properties
Physical Properties
- Appearance: White to pale off-white crystalline powder
- Odor: Odorless
- Solubility: Insoluble in water; slightly soluble in methanol, ethanol; soluble in acetone, dichloromethane, toluene, DMF; hardly soluble in alkane solvents
- Melting Point: 216–218 ℃
- Density (predicted): 1.54 g/cm3
- Hygroscopy: Non-hygroscopic under normal humidity
- Aqueous property: Stable neutral solid, no hydrolysis at room temperature; slow degradation under strong acid/alkali heating
Chemical Properties
- Molecular structure: Benzoyl urea skeleton with multiple chlorine and fluorine substituents; inhibits chitin synthesis of arthropods
- Insect growth regulation mechanism: Blocks chitin formation in larval mites/insects, leads to molting failure and death, no rapid knockdown effect
- Halogenated aromatic stability: Aryl-Cl and aryl-F bonds stable under normal storage conditions; strong reducing agents cause dehalogenation
- Thermal stability: Stable below 200 ℃; above melting point slight decomposition occurs
- Photostability: Moderately light-sensitive; prolonged UV irradiation causes slow discoloration and reduced biological activity
- Compatibility: Compatible with neutral pesticide auxiliary solvents and formulation carriers; incompatible with strong oxidants, concentrated strong acid/alkali
3. Main Application Fields
1. Veterinary Ectoparasiticide API (Core Application)
Raw material for pour-on, spray, tablet formulations for cattle, sheep, dogs, cats; long-term control of ticks, mites, fleas, lice, fly larvae
2. Agricultural Acaricide Intermediate
Active ingredient for orchard, crop mite control formulations targeting spider mites
3. Parasitology Research Reagent
Standard chitin synthesis inhibitor for laboratory arthropod toxicology testing
4. Pesticide Formulation Raw Material
Used to prepare slow-release long-acting pest control preparations with low mammalian toxicity
4. Quality Specification Table
| Test Item | Standard Specification |
| CAS Number | 86811-58-7 |
| Molecular Formula | C20H11Cl3F2N2O3 |
| Appearance | Uniform white crystal without brown impurities |
| HPLC Purity | Veterinary API Grade ≥98.5% |
| Melting Point | 216–218 ℃ |
| Water Content (KF) | ≤0.20% |
| Residue on Ignition | ≤0.10% |
| Single Unknown Impurity | ≤0.20% |
| Heavy Metals (Pb) | ≤10 ppm |
| Packaging | 100g/1kg amber aluminum foil vacuum bag, 25kg light-proof PE lined fiber drum |
| Storage Condition | Hermetically sealed cool dry warehouse below 25 ℃, light shielding, isolate acid, alkali and oxidants |
| Transportation Requirement | Light-sensitive halogenated pesticide powder, sealed moisture-proof packaging, separate from food and feed |
| Shelf Life | 24 months under nitrogen vacuum sealed storage |
Safety Warning
Low mammalian toxicity but irritant halogenated pesticide powder. Dust irritates eyes, nasal tract and skin; avoid long-term skin contact and inhalation. All operations must be carried out in ventilated fume hood with dust-proof respirator, splash-proof goggles and chemical-resistant nitrile gloves. Strictly prevent mixing with strong oxidants to avoid degradation. Waste liquid treated with flocculation neutralization before discharge; solid waste classified as pesticide hazardous waste disposed by licensed professional institutions. Keep away from aquaculture water sources during use and transport.
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