Description

3,3'-[(1-Methylethylidene)Bis(4,1-Phenyleneoxy)]Bis[1,2-Benzenedicarboxylic Acid] is a high-purity, multifunctional aromatic dicarboxylic acid derivative that serves as a critical building block in advanced polymer synthesis. This compound matters for its ability to impart enhanced thermal stability, mechanical strength, and chemical resistance to high-performance materials. Industrial R&D and production teams in the polymer, specialty chemical, and advanced material sectors need this chemical for developing next-generation engineering plastics, coatings, and adhesives.

Application

• Polymer Intermediate: A key monomer for the synthesis of high-performance polyesters, polyamides, and polyimides.
• Epoxy Resin Modifier: Used to enhance the thermal and mechanical properties of epoxy resin systems for composites and electronic encapsulants.
• Specialty Coating Formulations: Incorporated into coatings to improve durability, chemical resistance, and adhesion on demanding substrates.
• Adhesive & Sealant Production: Serves as a cross-linking agent or property enhancer in high-strength industrial adhesives and sealants.
• Liquid Crystal Polymer (LCP) Synthesis: A potential monomer for creating LCPs used in electronics and high-temperature applications.
• Pharmaceutical Intermediate: Used in the research and development of complex organic molecules and active pharmaceutical ingredients (APIs).

Basic Information

Product Name	3,3'-[(1-Methylethylidene)Bis(4,1-Phenyleneoxy)]Bis[1,2-Benzenedicarboxylic Acid]
CAS No.	53464-95-2
Molecular Formula	C34H26O10
Molecular Weight	594.57 g/mol
Synonyms	Bisphenol A Bis(trimellitate) Anhydride; 4,4'-Isopropylidenediphenol Bis(trimellitate) Anhydride; BTDA-BPA; Bisphenol A Diphthalic Anhydride; 3,3',4,4'-Benzophenonetetracarboxylic Dianhydride, Bisphenol A Derivative; 1,2,4-Benzenetricarboxylic Acid, 1,2-Anhydride, Polymer with 4,4'-(1-Methylethylidene)Bisphenol; BPA-BTDA
EINECS	Contact for details

Quality Control

Our 3,3'-[(1-Methylethylidene)Bis(4,1-Phenyleneoxy)]Bis[1,2-Benzenedicarboxylic Acid] is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the stringent requirements for polymer and specialty chemical synthesis. 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 material is hygroscopic (moisture-sensitive); ensure the container is kept tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm

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