Description

4,4'-Dibromodiphenic Acid is a high-purity brominated aromatic dicarboxylic acid derivative, serving as a critical advanced intermediate in specialty chemical synthesis. Its value lies in providing a rigid, bromine-functionalized biphenyl core, enabling the development of high-performance polymers and functional materials with tailored properties. This compound is essential for R&D and production teams in the pharmaceutical, liquid crystal, and advanced polymer industries seeking to incorporate specific halogenated motifs for enhanced thermal stability, flame retardancy, or molecular recognition.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of active pharmaceutical ingredients (APIs) and diagnostic agents, particularly those requiring a rigid, halogenated biphenyl structure.
• Liquid Crystal Manufacturing: Serves as a core precursor for brominated biphenyl-based mesogens used in display technologies, contributing to improved nematic ranges and dielectric anisotropy.
• High-Performance Polymer Synthesis: Monomer for producing specialty polyesters, polyamides, and epoxy resins, where the dibromo groups can act as reactive sites for cross-linking or further functionalization, enhancing flame retardancy and thermal properties.
• Organic Electronic Materials: Intermediate in the development of organic semiconductors, hole-transport materials, and ligands for OLEDs and perovskite solar cells.
• Metal-Organic Framework (MOF) Precursor: Used to construct functionalized ligands for MOFs with potential applications in gas storage, separation, and catalysis.
• Chemical Research & Development: A versatile reagent in academic and industrial R&D for exploring new synthetic methodologies and creating novel aromatic compounds.

Basic Information

Product Name	4,4'-Dibromodiphenic Acid
CAS No.	54389-67-2
Molecular Formula	C14H8Br2O4
Molecular Weight	400.02 g/mol
Synonyms	4,4'-Dibromobiphenyl-2,2'-dicarboxylic Acid; 2,2'-Dibromobiphenyl-4,4'-dicarboxylic Acid; [1,1'-Biphenyl]-2,2'-dicarboxylic acid, 4,4'-dibromo-; Dibromodiphenic Acid; 4,4'-Dibromodiphenyl-2,2'-dicarboxylic Acid
EINECS	Contact for details

Quality Control

Our 4,4'-Dibromodiphenic Acid is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity assessment and NMR/IR for structural confirmation, to ensure it meets exacting standards for research and industrial use. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Keep away from strong acids and incompatible materials. The container must be kept tightly sealed to protect from moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Heavy Metals	≤ 20 ppm

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