Description

4,4'-Dibromo-trans-Stilbene is a high-purity organic compound belonging to the stilbene class of chemicals. This compound serves as a critical intermediate and building block in advanced organic synthesis, valued for its defined molecular structure and reactivity. It is primarily utilized by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and specialty chemical sectors for developing new active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of novel drug candidates and active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the research and development of new pesticides, herbicides, and plant growth regulators.
• Organic Light-Emitting Diodes (OLEDs): Acts as a precursor or core structure in the development of organic electronic materials and emissive layers.
• Liquid Crystal & Polymer Research: Serves as a monomer or mesogenic unit in the creation of advanced polymers and liquid crystal displays (LCDs).
• Fluorescent Probe & Dye Synthesis: Utilized in the manufacture of fluorescent markers, sensors, and specialized dyes for analytical and diagnostic applications.
• Academic & Industrial R&D: Essential reagent for organic chemistry research, method development, and scale-up process optimization.

Basic Information

Product Name	4,4'-Dibromo-trans-Stilbene
CAS No.	18869-30-2
Molecular Formula	C14H10Br2
Molecular Weight	338.04 g/mol
Synonyms	trans-1,2-Bis(4-bromophenyl)ethene; (E)-1,2-Bis(4-bromophenyl)ethylene; 4,4'-Dibromostilbene; trans-4,4'-Dibromostilbene; (E)-4,4'-Dibromostilbene; p,p'-Dibromostilbene; 1,1'-(E)-Ethene-1,2-diylbis(4-bromobenzene)
EINECS	242-635-8

Quality Control

Our 4,4'-Dibromo-trans-Stilbene is manufactured under strict quality management systems. Every batch undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming compliance with agreed specifications. We support cGMP and ISO standards for reliable supply to regulated industries.

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 strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	218 - 222 °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.