Description

4,4'-Oxybisbenzoic Acid is a high-purity aromatic dicarboxylic acid derivative, serving as a critical building block in advanced polymer synthesis. Its value lies in its symmetrical, rigid molecular structure, which imparts exceptional thermal stability and mechanical properties to the resulting materials. This compound is essential for manufacturers in the polymer, specialty chemical, and pharmaceutical intermediate sectors seeking to develop high-performance products.

Application

• Polymer Synthesis: A key monomer for producing high-performance polyesters, polyamides, and liquid crystalline polymers (LCPs).
• Pharmaceutical Intermediates: Used in the synthesis of active pharmaceutical ingredients (APIs) and complex organic molecules.
• Specialty Chemicals: Serves as a precursor for dyes, pigments, and photoactive compounds.
• Cross-linking Agent: Imparts rigidity and thermal resistance as a cross-linker in epoxy and other thermoset resin systems.
• Material Science Research: Employed in R&D for developing new polymeric materials with tailored properties.

Basic Information

Product Name	4,4'-Oxybisbenzoic Acid
CAS No.	2215-89-6
Molecular Formula	C14H10O5
Molecular Weight	258.23 g/mol
Synonyms	4,4'-Oxybis(benzoic acid); 4,4'-Carbonylbis(benzoic acid); 4,4'-Dibenzoic acid ether; 4,4'-Oxydibenzoic acid; 4,4'-(Oxybis(4,1-phenylene))dibenzoic acid; Bis(4-carboxyphenyl) ether; Oxybis(4-benzoic acid); OBBA
EINECS	218-710-3

Quality Control

Our 4,4'-Oxybisbenzoic Acid is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets exacting purity and consistency standards. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming specifications for identity, assay, and impurity profiles. We support compliance with global regulatory frameworks including REACH.

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). Keep away from strong oxidizing agents and bases.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	340 - 350 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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