Description

4-(4-Carboxyphenoxy)Phthalic Acid is a high-purity aromatic dicarboxylic acid derivative, serving as a critical building block in advanced polymer synthesis. Its bifunctional structure, featuring both phthalic and benzoic acid moieties linked by an ether bridge, enables the creation of polymers with tailored thermal and mechanical properties. This compound is essential for R&D chemists and manufacturers in the production of specialty polyimides, polyesters, and liquid crystal polymers for high-performance applications.

Application

• Polymer Intermediate: A key monomer for synthesizing high-temperature resistant polyimides and polyamide-imides used in aerospace and electronics.
• Liquid Crystal Polymers (LCPs): Serves as a comonomer in the production of LCPs for precision molded components and high-barrier packaging films.
• Epoxy Curing Agent & Modifier: Used to modify epoxy resin systems, enhancing their thermal stability and chemical resistance.
• Pharmaceutical Intermediate: Employed in the synthesis of complex organic molecules and active pharmaceutical ingredients (APIs).
• Dye & Pigment Synthesis: Acts as a precursor in the manufacture of specialized dyes and organic pigments.
• Adhesive & Coating Formulations: Incorporated into high-performance adhesives and coatings to improve durability and heat resistance.
• Academic & Industrial Research: A valuable reagent for material science research and development of novel polymeric materials.

Basic Information

Product Name	4-(4-Carboxyphenoxy)Phthalic Acid
CAS No.	7717-74-0
Molecular Formula	C15H10O7
Molecular Weight	302.24 g/mol
Synonyms	4-(4-Carboxyphenoxy)phthalic acid; 4-Carboxyphenoxyphthalic Acid; 4,4'-Oxybis(benzoic acid); 4,4'-Oxybisbenzoic Acid; 4-(4-Carboxyphenoxy)benzene-1,2-dicarboxylic Acid; 4,4'-Oxybisphthalic Acid (related); 4-(4-Carboxyphenoxy)phthalic Anhydride (precursor form); 4-CPOA
EINECS	Contact for details

Quality Control

Every batch of 4-(4-Carboxyphenoxy)Phthalic Acid is manufactured under a strict quality management system. Our products undergo rigorous analytical testing, including HPLC, NMR, and FTIR, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided with each shipment to guarantee compliance with your research and production requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product stability and performance.

Specification

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

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