Description

3-Bromo-4-Chloroethylbenzene is a high-purity halogenated aromatic building block of significant importance in advanced organic synthesis. Its value lies in its role as a versatile intermediate for constructing complex molecular architectures, particularly in the pharmaceutical and agrochemical sectors. This compound is essential for researchers and manufacturers developing active pharmaceutical ingredients (APIs), liquid crystal materials, and specialty fine chemicals, where precise functionalization is critical.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates and active pharmaceutical ingredients (APIs), especially those requiring specific halogen-substituted aromatic cores.
• Agrochemical Synthesis: Used in the research and production of advanced herbicides, fungicides, and pesticides, where the bromo and chloro substituents impart specific biological activity.
• Liquid Crystal Materials: Serves as a building block for creating halogenated mesogens used in display technologies due to its influence on molecular polarity and alignment.
• Organic Light-Emitting Diodes (OLEDs): Employed in the development of electron-transport or host materials for optoelectronic devices.
• Polymer Modification: Acts as a functional monomer or cross-linking agent for introducing aromatic halogen groups into polymer chains to alter physical properties.
• Chemical Research & Development: A valuable reagent in academic and industrial R&D for palladium-catalyzed cross-coupling reactions (e.g., Suzuki, Heck) and other metal-mediated transformations.

Basic Information

Product Name	3-Bromo-4-Chloroethylbenzene
CAS No.	289039-24-3
Molecular Formula	C8H8BrCl
Molecular Weight	219.51 g/mol
Synonyms	1-Bromo-2-chloro-4-ethylbenzene; 4-Ethyl-1-bromo-2-chlorobenzene; 3-Bromo-4-chloro-1-ethylbenzene; (3-Bromo-4-chlorophenyl)ethane; 2-Chloro-4-ethylbromobenzene; 4-Ethyl-2-chlorobromobenzene; 3-Bromo-4-chlorophenylethane
EINECS	Contact for details

Quality Control

Our 3-Bromo-4-Chloroethylbenzene is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to verify identity and purity against stringent internal specifications. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong acids and incompatible organic solvents. The container should be kept tightly sealed to prevent moisture absorption and contamination.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Purity (by GC/HPLC)	≥ 98.0% (Area %)
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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