Description

1,2-Benzenedicarboxylic Acid, 4,4'-[1,4-Phenylenebis(Oxy)]Bis- is a specialized aromatic dicarboxylic acid derivative, a high-purity chemical intermediate of significant industrial importance. This compound matters for its role as a key building block in the synthesis of advanced polymers and functional materials, offering precise structural control. It is primarily needed by manufacturers in the polymer, specialty chemical, and advanced material sectors for creating high-performance products.

Application

• Polymer Synthesis: A crucial monomer for producing high-temperature resistant polyesters, polyamides, and liquid crystalline polymers (LCPs).
• Advanced Material Production: Used in the manufacture of engineering plastics, films, and fibers requiring enhanced thermal and mechanical stability.
• Specialty Chemical Intermediate: Serves as a precursor for synthesizing complex organic compounds, including dyes, pigments, and pharmaceutical intermediates.
• Cross-linking Agent: Employed in epoxy resin systems and other thermosetting polymers to improve hardness and chemical resistance.
• Coating Formulations: Incorporated into high-performance industrial and protective coatings to enhance durability and adhesion.
• Adhesive and Sealant Chemistry: Used to modify the properties of adhesives, improving their strength and thermal performance.

Basic Information

Product Name	1,2-Benzenedicarboxylic Acid, 4,4'-[1,4-Phenylenebis(Oxy)]Bis-
CAS No.	18959-88-1
Molecular Formula	C22H14O8
Molecular Weight	406.34 g/mol
Synonyms	4,4'-[1,4-Phenylenebis(oxy)]diphthalic acid; 4,4'-(p-Phenylenedioxy)diphthalic acid; 1,4-Bis(3,4-dicarboxyphenoxy)benzene; Terephthaloylbis(4-carboxyphthalic anhydride) derivative; Bis(3,4-dicarboxyphenoxy)benzene; p-Phenylenebis(oxy-4,1-phthalic acid); [1,1'-Biphenyl]-4,4'-dicarboxylic acid, 5,5'-[oxybis(4,1-phenyleneoxy)]bis-
EINECS	Contact for details

Quality Control

Our 1,2-Benzenedicarboxylic Acid, 4,4'-[1,4-Phenylenebis(Oxy)]Bis- is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, identity, and consistency. Certificates of Analysis (COA) documenting key parameters are available upon request to support your quality assurance and regulatory needs.

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, strong bases, and sources of heat.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
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.