Description

5,5'-Oxydiisophthalic Acid is a high-purity aromatic dicarboxylic acid derivative, serving as a critical building block in advanced polymer synthesis. Its value lies in its rigid, symmetrical molecular structure, which imparts exceptional thermal stability and mechanical properties to the resulting materials. This compound is essential for R&D and production in industries focused on high-performance engineering plastics, liquid crystal polymers (LCPs), and specialty polyimides.

Application

• High-Performance Polymer Monomer: A key diacid monomer for synthesizing advanced polyesters, polyamides, and polyimides with superior heat resistance.
• Liquid Crystal Polymer (LCP) Production: Used in the manufacture of LCPs for electronics, aerospace, and automotive components requiring dimensional stability.
• Specialty Polyimide Resins: Serves as a precursor for high-temperature polyimide films, coatings, and adhesives used in flexible circuits and insulation.
• Pharmaceutical Intermediate: Employed in the synthesis of complex organic molecules and active pharmaceutical ingredients (APIs).
• Crosslinking Agent: Functions as a crosslinker in epoxy and other thermoset resin systems to enhance thermal and chemical resistance.
• Metal-Organic Framework (MOF) Synthesis: Acts as an organic linker in the construction of porous MOF materials for catalysis and gas storage.

Basic Information

Item	Details
Product Name	5,5'-Oxydiisophthalic Acid
CAS No.	1817605-38-1
Molecular Formula	C16H10O9
Molecular Weight	346.25 g/mol
Synonyms	5,5'-Oxybis(isophthalic acid); 5,5'-Carbonylbis(1,3-benzenedicarboxylic acid); Bis(3,5-dicarboxyphenyl) ether; 3,3',5,5'-Biphenyltetracarboxylic acid derivative; ODIPA; Contact for additional synonyms.
EINECS	Contact for details

Quality Control

Our 5,5'-Oxydiisophthalic Acid is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for advanced material synthesis. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance protocols.

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 sealed to prevent moisture absorption, which can affect product 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%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm

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