Description

2,3-Dimethylstyrene CAS NO 40243-75-2 is a high-purity, substituted styrene monomer characterized by its two methyl groups on the aromatic ring, which influence its reactivity and physical properties. This compound is valued for its role as a specialized building block in advanced polymer synthesis and fine chemical manufacturing. It is primarily sought by R&D laboratories and industrial producers in the pharmaceutical, agrochemical, and specialty polymer sectors for creating tailored materials with specific performance characteristics.

Application

• Specialty Polymer & Resin Synthesis: Serves as a key monomer for producing modified polystyrene and co-polymers with enhanced thermal stability and tailored solubility.
• Pharmaceutical Intermediates: Used in the synthesis of complex organic molecules and active pharmaceutical ingredients (APIs) requiring specific aromatic substitution patterns.
• Agrochemical Intermediates: Acts as a precursor in the manufacture of advanced herbicides, fungicides, and plant growth regulators.
• Fine Chemical Production: Employed in organic synthesis for creating fragrances, flavors, and other high-value aromatic compounds.
• Adhesive & Coating Formulations: Incorporated to modify the properties of industrial adhesives and coatings, improving flexibility and chemical resistance.
• Research & Development: A critical reagent in academic and industrial R&D for exploring new polymerization techniques and material science.

Basic Information

Product Name	2,3-Dimethylstyrene
CAS No.	40243-75-2
Molecular Formula	C10H12
Molecular Weight	132.20 g/mol
Synonyms	2,3-Dimethylvinylbenzene; 1-Ethenyl-2,3-dimethylbenzene; 2,3-Dimethylphenylethene; (2,3-Dimethylphenyl)ethylene; 2,3-Dimethylstyrol; 2,3-Xylenyl ethylene; Vinyl-2,3-xylene; 2,3-DMS
EINECS	Contact for details

Quality Control

Our 2,3-Dimethylstyrene is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including GC and HPLC analysis, to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, assay, and impurity profiles is provided with each shipment to guarantee compliance with your specifications and industry standards.

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 2-8°C to maximize stability and shelf life. 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 structure
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.1%
Related Substances (GC)	Individual impurity ≤ 0.5%
Specific Gravity (20°C)	0.90 - 0.92
Refractive Index (20°C)	1.535 - 1.545

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