Description

4,4''-Dihydroxy-[1,1':4',1''-Terphenyl]-3,3''-Dicarboxylic Acid is a high-purity, multifunctional organic building block featuring a rigid terphenyl core with terminal carboxylic acid and phenolic hydroxyl groups. This compound matters for its role as a key monomer in the synthesis of advanced polymers and materials, where its precise geometry and reactive sites enable the creation of high-performance structures. It is essential for researchers and manufacturers in the fields of liquid crystal polymers (LCPs), polyimides, polyesters, and metal-organic frameworks (MOFs) who require consistent, high-quality intermediates for demanding applications.

Application

• Liquid Crystal Polymer (LCP) Monomer: Serves as a critical rigid-rod monomer for producing high-temperature, high-strength engineering thermoplastics used in electronics, automotive, and aerospace components.
• High-Performance Polyimide Synthesis: Used as a diacid monomer to create polyimides with exceptional thermal stability, mechanical strength, and chemical resistance for flexible circuits and advanced coatings.
• Metal-Organic Framework (MOF) Precursor: Acts as a versatile organic linker due to its multiple coordination sites, facilitating the construction of porous materials for gas storage, separation, and catalysis.
• Specialty Polyester and Polyamide Production: Incorporated to enhance the thermal and mechanical properties of aromatic polymers for fibers and films.
• Pharmaceutical Intermediate: Utilized in the research and development of complex organic molecules and active pharmaceutical ingredients (APIs).
• Organic Electronic Materials: Investigated as a component in the development of organic semiconductors and electro-optical materials.

Basic Information

Product Name	4,4''-Dihydroxy-[1,1':4',1''-Terphenyl]-3,3''-Dicarboxylic Acid
CAS No.	1623061-09-5
Molecular Formula	C26H18O8
Molecular Weight	458.42 g/mol
Synonyms	3,3''-Dicarboxy-4,4''-dihydroxy-p-terphenyl; 4,4''-Dihydroxyterphenyl-3,3''-dicarboxylic Acid; [1,1':4',1''-Terphenyl]-3,3''-dicarboxylic acid, 4,4''-dihydroxy-; p-Terphenyl-4,4''-diol-3,3''-dicarboxylic Acid; Terphenyl dicarboxylic acid derivative
EINECS	Contact for details

Quality Control

Our 4,4''-Dihydroxy-[1,1':4',1''-Terphenyl]-3,3''-Dicarboxylic Acid is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC, NMR, and FTIR, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all specified parameters. Our quality commitment aligns with cGMP principles where applicable, ensuring reliability for research and industrial scale-up.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed after opening to minimize exposure to atmospheric moisture. For long-term storage, consider using desiccants.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm

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