Description

3,4-Dichlorostyrene is a halogenated styrene derivative serving as a versatile and reactive chemical intermediate. Its core value proposition lies in its ability to introduce both styrenic and dichlorophenyl functionalities into polymers and specialty organic compounds, enabling the synthesis of materials with tailored properties. This compound is essential for R&D chemists and process engineers in the polymer, agrochemical, and pharmaceutical industries seeking to develop advanced materials and active ingredients.

Application

• Polymer Modification: Key monomer for producing specialty polymers and copolymers, such as ion-exchange resins or polymers with enhanced flame retardancy, thermal stability, and chemical resistance.
• Agrochemical Synthesis: Intermediate in the manufacture of advanced pesticides, herbicides, and fungicides, where the dichlorophenyl group is a common bioactive moiety.
• Pharmaceutical Intermediates: Building block for the synthesis of complex drug molecules and active pharmaceutical ingredients (APIs).
• Crosslinking Agent: Used in the production of thermosetting resins and coatings to improve hardness and durability.
• Organic Synthesis: Versatile reagent for introducing the styryl group into more complex organic molecules via reactions like Heck coupling or radical polymerization.
• Material Science Research: Used in R&D for developing new polymeric materials with specific optical, electronic, or mechanical properties.

Basic Information

Product Name	3,4-Dichlorostyrene
CAS No.	2039-83-0
Molecular Formula	C8H6Cl2
Molecular Weight	173.04 g/mol
Synonyms	1,2-Dichloro-4-vinylbenzene; 3,4-Dichloro-1-vinylbenzene; 3,4-Dichlorostyrol; (3,4-Dichlorophenyl)ethylene; Vinyl-3,4-dichlorobenzene; m,p-Dichlorostyrene; NSC 60548
EINECS	218-016-6

Quality Control

Our 3,4-Dichlorostyrene is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including GC/HPLC for purity and identity confirmation, to ensure it meets precise customer specifications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong acids, bases, and oxidizing agents. Recommended storage temperature is 2-8°C to maximize stability and shelf-life. Keep container tightly sealed when not in use to prevent moisture absorption and polymerization.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.1%
Density (at 20°C)	~1.30 g/cm³
Refractive Index (n20D)	~1.57

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.