Description

Alpha,p-Dimethylstyrene is a high-purity aromatic monomer characterized by its reactive vinyl group and two methyl substituents. This compound is valued for its role as a versatile chemical intermediate, enabling the synthesis of specialized polymers, resins, and fine chemicals. It is primarily sought by manufacturers in the polymer, specialty chemical, and pharmaceutical intermediate industries for applications requiring controlled reactivity and specific molecular architecture.

Application

• Polymer & Resin Modification: Used as a co-monomer to introduce pendant methyl groups, modifying the thermal and mechanical properties of styrenic and acrylic polymers.
• Specialty Chemical Synthesis: Serves as a key building block in the production of fine chemicals, fragrances, and advanced organic intermediates.
• Crosslinking Agent: Employed in the formulation of thermosetting resins and coatings to enhance crosslink density and performance.
• Adhesive & Sealant Formulations: Incorporated to improve adhesion, flexibility, and chemical resistance in high-performance formulations.
• Pharmaceutical Intermediates: Utilized in the synthesis of complex organic molecules for active pharmaceutical ingredients (APIs).
• Research & Development: A valuable reagent for academic and industrial R&D in organic chemistry and material science.

Basic Information

Product Name	Alpha,p-Dimethylstyrene
CAS No.	1195-32-0
Molecular Formula	C10H12
Molecular Weight	132.20 g/mol
Synonyms	2,4-Dimethylstyrene; p-Methyl-α-methylstyrene; 1-Ethenyl-2,4-dimethylbenzene; 2,4-Dimethylvinylbenzene; α-(p-Tolyl)propene; 2,4-Dimethylphenyl ethylene; (2,4-Dimethylphenyl)ethene
EINECS	214-795-6

Quality Control

Our Alpha,p-Dimethylstyrene is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including Gas Chromatography (GC) for purity and identity confirmation, to ensure it meets precise specifications. A Certificate of Analysis (COA) detailing all test results is provided with every shipment, guaranteeing traceability and compliance with customer requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area at room temperature (15-25°C/59-77°F) under an inert atmosphere (e.g., nitrogen) to prevent oxidation. Keep away from heat, sparks, and open flame. For long-term storage, monitor container integrity.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
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.