Description

3,5-Dichloro-α-Methylstyrene is a halogenated styrene derivative, a versatile and reactive chemical intermediate prized for its ability to introduce specific functional groups into polymer chains and complex organic molecules. Its value lies in providing a synthetic handle for creating advanced materials with tailored properties, such as enhanced thermal stability, chemical resistance, or specific reactivity. This compound is essential for R&D chemists and process engineers in the pharmaceutical, agrochemical, and specialty polymer industries, where it serves as a key building block for active ingredients, functional monomers, and advanced resins.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs), particularly those requiring halogenated aromatic structures for bioactivity.
• Agrochemical Synthesis: Serves as a precursor in the manufacture of herbicides, fungicides, and pesticides, where the dichloro-substituted ring provides key structural motifs.
• Specialty Polymer & Resin Production: Acts as a functional monomer or cross-linking agent to create polymers with enhanced flame retardancy, adhesion, or chemical resistance.
• Organic Synthesis & R&D: A valuable reagent in academic and industrial research for constructing complex organic molecules, including ligands and dyes.
• Material Science: Employed in the development of advanced coatings, composites, and electronic materials requiring specific monomeric units.

Basic Information

Product Name	3,5-Dichloro-α-Methylstyrene
CAS No.	68575-36-0
Molecular Formula	C9H8Cl2
Molecular Weight	187.06 g/mol
Synonyms	1-(3,5-Dichlorophenyl)ethene; 3,5-Dichloro-α-methylstyrene; 3,5-Dichloro-1-isopropenylbenzene; 1-Isopropenyl-3,5-dichlorobenzene; (3,5-Dichlorophenyl)ethene; α-Methyl-3,5-dichlorostyrene; 3,5-Dichlorostyrene, α-methyl-
EINECS	Contact for details

Quality Control

Our 3,5-Dichloro-α-Methylstyrene is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including chromatographic purity analysis and identity confirmation, to ensure it meets precise customer specifications and industry standards. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with each shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame. For long-term storage, consider under an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Related Substances (GC/HPLC)	Individual impurity ≤ 1.0%; Total impurities ≤ 2.0%

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