Description

2,5-Dimethylstyrene is a high-purity aromatic hydrocarbon monomer characterized by its two methyl substituents on the styrene ring. This compound is a valuable chemical intermediate prized for its reactivity in polymerization and copolymerization reactions, enabling the creation of specialized polymers with tailored properties. It is essential for manufacturers in the polymer, specialty chemical, and advanced materials sectors seeking to develop products with enhanced thermal stability, specific refractive indices, or modified surface characteristics.

Application

• Polymer & Resin Manufacturing: Serves as a key monomer for producing specialty polystyrene derivatives and copolymers with enhanced heat resistance and mechanical strength.
• Synthetic Intermediates: Used in the synthesis of more complex organic molecules for pharmaceuticals, agrochemicals, and fine chemicals due to its reactive vinyl group.
• Adhesive & Sealant Formulations: Incorporated into formulations to improve adhesion, flexibility, and environmental resistance in high-performance bonding applications.
• Coatings & Inks: Acts as a reactive diluent or modifier in radiation-curable coatings and printing inks, contributing to faster curing times and improved film properties.
• Research & Development: Utilized in academic and industrial R&D labs for material science studies and the development of novel polymeric architectures.
• Rubber & Elastomer Modification: Employed to modify synthetic rubbers, impacting their processability, cross-linking density, and final elastomeric properties.

Basic Information

Product Name	2,5-Dimethylstyrene
CAS No.	2039-89-6
Molecular Formula	C10H12
Molecular Weight	132.20 g/mol
Synonyms	2,5-Dimethylstyrene; 2,5-Dimethylphenylethene; 1-Ethenyl-2,5-dimethylbenzene; 2,5-Dimethylvinylbenzene; m-Xylene, vinyl-; Vinyl-2,5-dimethylbenzene; 2,5-Dimethylstyrol
EINECS	218-011-4

Quality Control

Our 2,5-Dimethylstyrene is manufactured under stringent quality management systems to ensure batch-to-batch consistency and reliability. Each lot undergoes comprehensive analytical testing, including gas chromatography (GC) for purity and identity confirmation. Certificates of Analysis (COA) detailing all relevant specifications are provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat sources and incompatible materials such as strong acids and oxidizing agents. Recommended storage temperature is between 15°C and 25°C (59°F and 77°F). Keep container tightly sealed when not in use to prevent evaporation and potential contamination.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.1%
Refractive Index (n20D)	1.535 - 1.545
Density (20°C)	0.910 - 0.920 g/mL

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