Description

4,4'-Dihydroxybiphenyl-3,3'-Dicarboxylic Acid is a high-purity biphenyl derivative featuring both phenolic hydroxyl and carboxylic acid functional groups, making it a versatile and valuable organic intermediate. This compound is essential for synthesizing advanced polymers, liquid crystals, and specialty chemicals where precise molecular architecture is required. It is primarily sought by R&D laboratories and manufacturers in the polymer, pharmaceutical, and advanced materials sectors.

Application

• Polymer Synthesis: A key monomer for producing high-performance engineering plastics, polyesters, and polyamides with enhanced thermal stability and mechanical properties.
• Liquid Crystal Materials: Serves as a core building block in the manufacture of liquid crystal polymers (LCPs) and monomers for display technologies.
• Pharmaceutical Intermediates: Used in the research and development of active pharmaceutical ingredients (APIs) and complex organic molecules.
• Dye & Pigment Manufacturing: Acts as a precursor in the synthesis of specialized dyes and organic pigments.
• Cross-linking Agent: Utilized in epoxy resin systems and other thermosetting polymers to improve cross-link density and performance.
• Chelating Agent Synthesis: A starting material for creating novel chelating ligands used in catalysis and metal ion sequestration.

Basic Information

Product Name	4,4'-Dihydroxybiphenyl-3,3'-Dicarboxylic Acid
CAS No.	13987-45-6
Molecular Formula	C14H10O6
Molecular Weight	274.22 g/mol
Synonyms	3,3'-Dicarboxy-4,4'-dihydroxybiphenyl; 4,4'-Biphenyldiol-3,3'-dicarboxylic Acid; 3,3'-Biphenyldicarboxylic Acid, 4,4'-dihydroxy-; DHBDA; Biphenyl-4,4'-diol-3,3'-dicarboxylic Acid; 4,4'-Dihydroxy-[1,1'-biphenyl]-3,3'-dicarboxylic Acid
EINECS	Contact for details

Quality Control

Our 4,4'-Dihydroxybiphenyl-3,3'-Dicarboxylic Acid is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for research and industrial synthesis. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is moisture-sensitive (hygroscopic); keep the container tightly sealed when not in use.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Heavy Metals	≤ 20 ppm

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