Description

4,4'-Oxalyldibenzoic Acid is a high-purity organic dicarboxylic acid derivative, serving as a critical building block in advanced chemical synthesis. Its value lies in its bifunctional structure, which provides two reactive carboxylic acid groups linked by a rigid aromatic-oxalyl core, enabling the creation of complex polymers and fine chemicals. This compound is essential for research and production in the pharmaceutical, polymer, and specialty chemical industries, where precise molecular architecture is required.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds requiring rigid, symmetrical dicarboxylic acid linkers.
• Polymer Chemistry: Monomer for producing high-performance polyamides, polyesters, and polyimides, contributing to thermal stability and mechanical strength in engineering plastics.
• Liquid Crystal & OLED Materials: Building block for synthesizing organic semiconductors and liquid crystal compounds used in display technologies.
• Metal-Organic Frameworks (MOFs): Organic linker in the construction of porous coordination polymers for gas storage, separation, and catalysis.
• Crosslinking Agent: Used in coatings, adhesives, and resin systems to enhance network density and performance properties.
• Organic Synthesis & Research: Versatile reagent for academic and industrial R&D in creating novel organic molecules and complex ligands.

Basic Information

Product Name	4,4'-Oxalyldibenzoic Acid
CAS No.	1585-67-7
Molecular Formula	C16H10O6
Molecular Weight	298.25 g/mol
Synonyms	4,4'-(Oxalylbis(oxy))dibenzoic acid; [1,1'-Biphenyl]-4,4'-dicarboxylic acid, oxo-bis-; Oxalyldi-4,1-phenylene diacetic acid; p,p'-Oxalyldibenzoic Acid; 4-Carboxyphenyl oxalate; Biphenyl-4,4'-dicarboxylic acid oxalate; ODB Acid; Contact for additional trade names.
EINECS	216-428-9

Quality Control

Our 4,4'-Oxalyldibenzoic Acid is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation by FT-IR and NMR, to ensure it meets exacting standards for research and industrial use. A Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). The product is moisture-sensitive (hygroscopic); keep the container tightly sealed when not in use to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Heavy Metals	< 10 ppm
Residue on Ignition	≤ 0.1%

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