Description

3,3'-[(1-Methylethylidene)Bis(4,1-Phenyleneoxy)]Bis(1,2-Benzenedicarboxylic Acid Disodium) Salt is a high-purity, water-soluble disodium salt derivative of a complex bisphenol-based tetracarboxylic acid. This compound is valued for its role as a key intermediate and functional additive in advanced material synthesis, offering excellent chelating and solubility properties. It is primarily sought by manufacturers in the polymer, specialty chemical, and pharmaceutical industries for applications requiring precise molecular architecture and ionic functionality.

Application

• As a functional monomer or cross-linking agent in the synthesis of high-performance polyimides, polyesters, and epoxy resins.
• As a chelating agent or metal ion scavenger in specialty chemical formulations and purification processes.
• As a key intermediate in pharmaceutical synthesis for the development of active pharmaceutical ingredients (APIs) with specific ionic characteristics.
• In the research and development of advanced electronic materials, such as photoresists or dielectric layers.
• As an additive for water treatment chemicals, leveraging its sequestering properties for scale and corrosion inhibition.
• For use in analytical chemistry as a standard or reagent in complexometric titrations.

Basic Information

Product Name	3,3'-[(1-Methylethylidene)Bis(4,1-Phenyleneoxy)]Bis(1,2-Benzenedicarboxylic Acid Disodium) Salt
CAS No.	72066-81-0
Molecular Formula	C34H24Na2O12
Molecular Weight	670.53 g/mol
Synonyms	Disodium 3,3'-[(1-Methylethylidene)bis(4,1-phenyleneoxy)]bis(1,2-benzenedicarboxylate); Bisphenol A Bis(3,4-Dicarboxyphenyl) Ether Disodium Salt; 3,3'-[Isopropylidenebis(p-phenyleneoxy)]diphthalic Acid Disodium Salt; BADGE-Tetracarboxylic Acid Disodium Salt; Bisphenol A Tetracarboxylic Acid Disodium Salt; BATC Disodium Salt; Contact for additional synonyms.
EINECS	Contact for details

Quality Control

Our production of 3,3'-[(1-Methylethylidene)Bis(4,1-Phenyleneoxy)]Bis(1,2-Benzenedicarboxylic Acid Disodium) Salt adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing key parameters such as assay, impurity profile, and moisture content are provided and available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to minimize exposure to atmospheric moisture. Store away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition	≤ 0.5%
Solubility (1% in Water)	Clear, colorless solution

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