Description

((1E,3E)-5-Bromo-Penta-1,3-Dienyl)-Benzene is a specialized brominated diene derivative, serving as a high-value synthetic intermediate in advanced organic chemistry. Its unique conjugated structure, featuring both a bromine atom and a terminal phenyl group, makes it a versatile building block for constructing complex molecular architectures. This compound is primarily utilized by research chemists and process development scientists in the pharmaceutical, agrochemical, and materials science industries for applications such as cross-coupling reactions and the synthesis of novel polymers or liquid crystals.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds requiring a conjugated diene or aryl-bromide moiety for further functionalization via Suzuki, Heck, or other palladium-catalyzed cross-coupling reactions.
• Agrochemical Research: Used in the development of new crop protection agents, where its reactive bromine and diene system allow for the creation of novel heterocyclic or aliphatic side chains with specific biological activity.
• Material Science & Polymer Chemistry: Acts as a monomer or co-monomer in the development of specialty polymers, including conjugated polymers for organic electronics (OLEDs, OFETs) or liquid crystalline materials.
• Organic Synthesis Building Block: Employed in academic and industrial R&D for Diels-Alder reactions, nucleophilic substitutions, and as a scaffold for constructing complex natural product analogs and chemical libraries.
• Ligand & Catalyst Development: Serves as a starting material for synthesizing novel phosphine or nitrogen-based ligands used in asymmetric catalysis and transition metal complexes.

Basic Information

Product Name	((1E,3E)-5-Bromo-Penta-1,3-Dienyl)-Benzene
CAS No.	109529-98-8
Molecular Formula	C11H11Br
Molecular Weight	223.11 g/mol
Synonyms	5-Bromo-1,3-pentadienylbenzene; (1E,3E)-1-Bromo-5-phenyl-1,3-pentadiene; 5-Bromo-1-phenyl-1,3-pentadiene; (5-Bromopenta-1,3-dien-1-yl)benzene; trans,trans-5-Bromo-1-phenyl-1,3-pentadiene; 1-Bromo-5-phenylpenta-1,3-diene; Benzene, ((1E,3E)-5-bromo-1,3-pentadien-1-yl)-
EINECS	Contact for details

Quality Control

Our ((1E,3E)-5-Bromo-Penta-1,3-Dienyl)-Benzene is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity for research and development applications. Each lot is supported by a comprehensive Certificate of Analysis (COA) detailing key parameters such as purity (by HPLC/GC), identity confirmation (by IR, NMR), and impurity profiles. We adhere to cGMP principles where applicable, and specifications can be tailored to meet specific project requirements upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (typically 15-25°C). Due to its light-sensitive nature, prolonged exposure to light should be avoided. Keep the container tightly sealed when not in use to prevent degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Isomeric Purity (GC/HPLC)	≥ 95.0% (E,E-isomer)
Water Content (KF)	≤ 0.5%

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