Description

3,3',4,4'-Terephthaloydiphthalic Acid is a high-purity aromatic tetracarboxylic acid derivative, serving as a critical building block in advanced polymer synthesis. Its value lies in its ability to impart exceptional thermal stability, mechanical strength, and chemical resistance to the final materials. This compound is essential for R&D and production in industries requiring high-performance polymers and specialty chemicals.

Application

• Polyimide Monomer: A key precursor for the synthesis of high-performance polyimide resins and films, used in aerospace, electronics, and flexible circuitry.
• Liquid Crystal Polymer (LCP) Intermediate: Employed in the production of LCPs for connectors, sockets, and other precision electronic components.
• High-Temperature Polymer Additive: Used to enhance the thermal and oxidative stability of engineering plastics.
• Specialty Coating Formulations: Incorporated into coatings that require superior chemical resistance and durability.
• Pharmaceutical Intermediate: Serves as a sophisticated synthon in the research and development of complex active pharmaceutical ingredients (APIs).
• Advanced Material Research: Utilized in academic and industrial R&D for developing novel polymers, dendrimers, and organic frameworks.

Basic Information

Product Name	3,3',4,4'-Terephthaloydiphthalic Acid
CAS No.	23602-85-9
Molecular Formula	C24H12O10
Molecular Weight	460.35 g/mol
Synonyms	TPDA; 3,3',4,4'-Biphenyltetracarboxylic Acid; 3,3',4,4'-Benzophenonetetracarboxylic Acid; 3,3',4,4'-Diphenyltetracarboxylic Acid; 3,3',4,4'-Terephthaloyldiphthalic Dianhydride precursor; BPDA analogue; [1,1'-Biphenyl]-3,3',4,4'-tetracarboxylic Acid
EINECS	Contact for details

Quality Control

Our 3,3',4,4'-Terephthaloydiphthalic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the stringent requirements for polymer and pharmaceutical applications. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request.

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). This product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
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.