Description

1,5-Dibromo-2,4-diethynylbenzene is a high-purity, multi-functional aromatic building block featuring both bromo and ethynyl substituents, enabling versatile cross-coupling and cycloaddition reactions. This compound is essential for the precise synthesis of complex organic frameworks, including advanced polymers and functional materials. It is primarily sought by R&D chemists and material scientists in the pharmaceutical, agrochemical, and organic electronics industries for developing novel active ingredients and conductive polymers.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of novel drug candidates and active pharmaceutical ingredients (APIs) via Sonogashira and Suzuki-Miyaura cross-coupling reactions.
• Agrochemical Synthesis: Used in the research and development of new herbicides, fungicides, and pesticides, leveraging its reactive sites for structural diversification.
• Material Science & Organic Electronics: A critical monomer for constructing conjugated polymers, dendrimers, and Metal-Organic Frameworks (MOFs) for applications in OLEDs, OFETs, and sensors.
• Chemical Research & Development: Employed as a versatile scaffold in academic and industrial R&D for exploring new synthetic methodologies and creating complex molecular architectures.
• Ligand and Catalyst Preparation: Utilized to synthesize specialized ligands for catalysis or as a backbone for constructing novel catalytic systems.

Basic Information

Product Name	1,5-Dibromo-2,4-diethynylbenzene
CAS No.	731857-33-3
Molecular Formula	C10H4Br2
Molecular Weight	291.95 g/mol
Synonyms	2,4-Diethynyl-1,5-dibromobenzene; 1,5-Dibromo-2,4-diethynyl-benzene; Benzene, 1,5-dibromo-2,4-diethynyl-; 1,3-Dibromo-4,6-diethynylbenzene (alternate numbering); DEDB; 1,5-Dibromo-2,4-bis(ethynyl)benzene
EINECS	Contact for details

Quality Control

Our 1,5-Dibromo-2,4-diethynylbenzene is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your quality assurance and regulatory needs.

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 flames. For long-term storage, consider under an inert atmosphere to maintain optimal stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Heavy Metals	< 20 ppm
Residual Solvents (GC)	Meets ICH guidelines

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