Description

3,4-Dimethoxystyrene is a versatile vinyl aromatic monomer characterized by its two methoxy substituents on the benzene ring. This compound is a critical building block in polymer chemistry, enabling the synthesis of specialty polymers with tailored properties such as enhanced thermal stability, specific refractive indices, and advanced functionality. It is primarily sought after by R&D chemists and process engineers in the pharmaceutical, agrochemical, and advanced materials sectors for applications ranging from polymer modification to the synthesis of complex organic intermediates.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of active pharmaceutical ingredients (APIs) and complex drug molecules.
• Polymer & Resin Modification: Used as a co-monomer to introduce methoxy-functionalized aromatic units into polymers, enhancing properties like solubility, glass transition temperature (Tg), and optical characteristics.
• Agrochemical Synthesis: Employed in the production of advanced crop protection agents and herbicides.
• Liquid Crystal & OLED Materials: Acts as a building block for creating charge-transport materials, host materials, and other components in display and lighting technologies.
• Organic Synthesis & R&D: A valuable reagent for constructing complex organic frameworks in academic and industrial research laboratories.
• Adhesive & Coating Formulations: Incorporated to improve the adhesion, chemical resistance, and durability of high-performance coatings and adhesives.

Basic Information

Product Name	3,4-Dimethoxystyrene
CAS No.	6380-23-0
Molecular Formula	C10H12O2
Molecular Weight	164.20 g/mol
Synonyms	3,4-Dimethoxyvinylbenzene; 1-Ethenyl-3,4-dimethoxybenzene; 4-Vinylveratrole; 3,4-Dimethoxyphenylethylene; Veratryl ethylene; (3,4-Dimethoxyphenyl)ethene; 3,4-Dimethoxystyrene monomer
EINECS	228-967-7

Quality Control

Our 3,4-Dimethoxystyrene 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 the high standards required for research and industrial synthesis. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and consistency.

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 minimize potential polymerization.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC/HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20D)	1.560 - 1.565
Density (20°C)	1.05 - 1.10 g/cm³

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