Description

(E)-1-Phenyl-2-(4-Bromophenyl)Ethene is a high-purity stilbene derivative characterized by its distinct (E)-configuration and bromine substitution. This compound serves as a versatile and critical organic intermediate for advanced synthesis in pharmaceutical and materials science research. It is primarily utilized by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries for constructing complex molecular architectures.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of potential drug candidates, particularly those targeting central nervous system (CNS) disorders and oncology.
• Agrochemical Research: Used in the development of novel active ingredients for crop protection products.
• Organic Light-Emitting Diodes (OLEDs): Acts as a precursor or core structure for electron-transport materials and host materials in display and lighting technologies.
• Liquid Crystal & Photochromic Materials: Serves as a rigid, planar component in the design of advanced functional materials.
• Cross-Coupling Reactions: Valuable substrate in Suzuki, Heck, and other palladium-catalyzed cross-coupling reactions due to the reactive bromine atom.
• Academic & Industrial R&D: Essential reference standard and starting material for methodological studies in organic synthesis and catalysis.

Basic Information

Product Name	(E)-1-Phenyl-2-(4-Bromophenyl)Ethene
CAS No.	13041-70-8
Molecular Formula	C14H11Br
Molecular Weight	259.14 g/mol
Synonyms	(E)-4-Bromostilbene; trans-4-Bromostilbene; 1-Bromo-4-[(E)-2-phenylethenyl]benzene; 4-Bromo-trans-stilbene; p-Bromostilbene; (E)-1,2-Diphenyl-1-bromoethylene (incorrect but common); (E)-2-(4-Bromophenyl)-1-phenylethene; 4-Bromostilbene (mixed isomers)
EINECS	Contact for details

Quality Control

We maintain a rigorous quality management system to ensure batch-to-batch consistency and high purity. Our standard grade for (E)-1-Phenyl-2-(4-Bromophenyl)Ethene typically meets a purity specification of ≥97% (by HPLC), with identity confirmed by spectroscopic methods. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profile is provided with each shipment. Custom synthesis and purification to meet specific research-grade (e.g., >99%) or analytical standard requirements are available upon request.

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 the container sealed to prevent contamination and minimize exposure to moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	168 - 172 °C
Loss on Drying	≤ 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.