Description

4-Bromo-2-Chloro-1-Ethenyl-Benzene is a halogenated styrene derivative, a versatile and high-purity organic intermediate essential for advanced chemical synthesis. Its unique structure, featuring both bromine and chlorine substituents on the aromatic ring, makes it a critical building block for constructing complex molecules in pharmaceutical and agrochemical research. This compound is primarily sought after by R&D chemists and process development scientists in the fine chemical, pharmaceutical, and material science industries for applications such as cross-coupling reactions and polymer modification.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for molecules requiring halogenated aromatic motifs.
• Agrochemical Synthesis: Used in the development of novel herbicides, fungicides, and insecticides where the bromo-chloro-phenyl group imparts specific biological activity.
• Material Science & Polymer Chemistry: Serves as a functional monomer or cross-linking agent for creating specialty polymers with tailored thermal or optical properties.
• Ligand & Catalyst Development: Employed in the preparation of complex ligands for transition metal catalysts used in asymmetric synthesis.
• Organic Electronic Materials: A potential building block for organic semiconductors and light-emitting materials due to its conjugated system and halogen atoms.
• Chemical Research & Development: Utilized in academic and industrial labs for method development, such as Suzuki-Miyaura or Heck cross-coupling reactions.

Basic Information

Product Name	4-Bromo-2-Chloro-1-Ethenyl-Benzene
CAS No.	943742-24-3
Molecular Formula	C8H6BrCl
Molecular Weight	217.49 g/mol
Synonyms	2-Chloro-4-bromostyrene; 1-Bromo-3-chloro-4-vinylbenzene; 4-Bromo-2-chlorostyrene; 2-Chloro-4-bromo-1-ethenylbenzene; 1-Ethenyl-4-bromo-2-chlorobenzene; (2-Chloro-4-bromophenyl)ethene; Vinyl-2-chloro-4-bromobenzene
EINECS	Contact for details

Quality Control

Our 4-Bromo-2-Chloro-1-Ethenyl-Benzene is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. We provide comprehensive Certificates of Analysis (COA) for each lot, detailing purity, identity, and impurity profiles. Our quality commitment aligns with cGMP principles where applicable, ensuring the material meets the stringent requirements for use as a pharmaceutical intermediate.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Keep away from heat, sparks, and open flame. Due to its light-sensitive nature, containers should be kept in amber glass or opaque packaging.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Individual impurity ≤ 1.0%

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