3,4-Dichloroaniline Core Intermediates in the Pesticide Industry

1. Physical Properties
At room temperature, it is a white to pale yellow crystalline powder or brown needle-like crystals. It is practically insoluble in water, readily soluble in ethanol, diethyl ether, and acetone, and slightly soluble in benzene.
2. Chemical Properties
‌Structural Reactivity‌: The molecule contains an amino group and a benzene ring substituted with two chlorine atoms at the 3- and 4-positions. The amino group exhibits weak basicity and can react with acids to form salts; the chlorine atoms act as electron-withdrawing groups, reducing the basicity of the amino group while regulating the electrophilic substitution sites on the benzene ring and minimizing side reactions.
‌Stability‌: Chemically stable under normal conditions; long-term storage results only in slight darkening, with no risk of spontaneous decomposition.
‌Reaction Incompatibilities‌: Incompatible with strong oxidizing agents, acids, acyl chlorides, and acid anhydrides; contact may result in violent reactions.
‌Combustion Properties‌: Flammable when exposed to open flame; releases toxic chloride and nitrogen oxide fumes upon combustion.
3. Major Applications
Pesticide Industry‌: A key intermediate used in the synthesis of mainstream herbicides such as diquat, diquat-sodium, liguat, and metolachlor. These products offer long-lasting efficacy and consistent weed control, making them widely suitable for crops such as sugarcane, cotton, and citrus, as well as for weed control in non-cultivated areas.
‌Dye Industry‌: A key raw material for azo disperse dyes; the resulting dyes feature vivid colors and high colorfastness, meeting the demands of the textile printing and dyeing industry.
‌Other Applications‌: Serves as an intermediate for bioactive components in the synthesis of fine chemicals such as pharmaceutical disinfectants, polymer stabilizers, and rubber additives.

Grades and Specifications: Industrial grade (≥99.0%); custom specifications available.

The product strictly complies with the GB/T 2961-2014 national standard, accompanied by a complete set of MSDS, commodity inspection reports, and hazardous packaging certificates, and meets EU REACH import and export requirements. Standard packaging includes 200 kg galvanized closed-top steel drums and 1,000 L IBC containers. For large volumes, bulk transport via tank containers is available. Storing and transporting the product in a sealed, light-protected environment effectively delays oxidation and discoloration. Supply is stable and ample, supporting full-container and consolidated shipments for international trade, and meeting global chemical procurement and custom fine chemical production needs.

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