Description

4-Chloro-α-Methylstyrene is a versatile chlorinated styrene derivative, a key monomer and intermediate in advanced polymer synthesis. Its value lies in its ability to introduce both aromatic and reactive chloro-methyl functionalities into polymer chains, enhancing properties like thermal stability and chemical resistance. This compound is essential for R&D chemists and manufacturers in the polymer, specialty chemical, and pharmaceutical intermediate sectors seeking to develop high-performance materials.

Application

• Polymer & Resin Modification: Acts as a reactive monomer for the synthesis of specialty copolymers, including heat-resistant and halogenated resins.
• Pharmaceutical Intermediates: Serves as a crucial building block in the multi-step synthesis of active pharmaceutical ingredients (APIs) and other bioactive molecules.
• Agrochemical Synthesis: Used in the production of advanced pesticides and herbicides, where its structure contributes to product efficacy and stability.
• Crosslinking Agent: Functions as a crosslinker in polymer systems to improve mechanical strength, hardness, and solvent resistance.
• Organic Synthesis Intermediate: A valuable precursor for further chemical transformations, such as Grignard reactions or nucleophilic substitutions, in fine chemical production.
• Adhesive & Coating Formulations: Incorporated into formulations to enhance adhesion, durability, and environmental resistance of industrial coatings and adhesives.

Basic Information

Product Name	4-Chloro-α-Methylstyrene
CAS No.	1712-70-5
Molecular Formula	C9H9Cl
Molecular Weight	152.62 g/mol
Synonyms	1-Chloro-4-(1-methylethenyl)benzene; p-Chloro-α-methylstyrene; 4-Chloro-α-methylstyrene; (4-Chlorophenyl)propene; 4-Chloroisopropenylbenzene; p-Chloroisopropenylbenzene; α-Methyl-4-chlorostyrene; 4-Chloro-1-isopropenylbenzene
EINECS	217-000-9

Quality Control

Our 4-Chloro-α-Methylstyrene is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including GC, HPLC, and NMR, to ensure high purity and consistency. We provide full traceability and a detailed Certificate of Analysis (COA) with every shipment, confirming compliance with agreed specifications.

Storage

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

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.1%
Refractive Index (n20/D)	1.555 - 1.560
Density (20°C)	1.08 - 1.10 g/mL

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