Description

Benzoic Acid,4,4'-[[2,2-Bis[(4-Carboxyphenoxy)Methyl]-1,3-Propanediyl]Bis(Oxy)]Bis- is a high-purity, multifunctional aromatic carboxylic acid derivative designed for advanced material synthesis. This compound is valued for its rigid, symmetrical structure and multiple reactive carboxyl groups, making it an essential high-performance monomer for creating specialized polymers. It is primarily sought by R&D and production teams in the advanced polymer, specialty chemical, and pharmaceutical intermediate sectors.

Application

• High-Temperature Polymer Synthesis: A key monomer for producing polyesters, polyamides, and polybenzoxazoles with exceptional thermal stability and mechanical properties.
• Liquid Crystal Polymers (LCPs): Serves as a critical building block in the manufacture of LCPs used in electronics, aerospace, and automotive components.
• Pharmaceutical Intermediates: Used in the synthesis of complex active pharmaceutical ingredients (APIs) and drug delivery systems.
• Epoxy Curing Agents & Hardeners: Functions as a cross-linking agent to enhance the thermal and chemical resistance of epoxy resin systems.
• Specialty Coatings & Adhesives: Imparts durability, adhesion, and chemical resistance in high-performance industrial coatings and adhesives.
• Advanced Composite Materials: Incorporated into resin matrices for carbon fiber and glass fiber composites.
• Chemical Research & Development: Utilized as a versatile scaffold in organic synthesis and material science research.

Basic Information

Item	Details
Product Name	Benzoic Acid,4,4'-[[2,2-Bis[(4-Carboxyphenoxy)Methyl]-1,3-Propanediyl]Bis(Oxy)]Bis-
CAS No.	245551-35-3
Molecular Formula	C33H28O12
Molecular Weight	616.57 g/mol
Synonyms	1,3-Bis[4-(carboxyphenoxy)-2-[[4-(carboxyphenoxy)methyl]-2-methylpropane]propane; Tetrakis(4-carboxyphenoxymethyl)methane derivative; 2,2-Bis[{bis(4-carboxyphenoxy)methyl}methyl]-1,3-propanediol tetraacid; Pentacrythritol tetrakis(4-carboxybenzoate) analog; Aromatic tetraacid monomer; BPADA-type tetraacid intermediate
EINECS	Contact for details

Quality Control

Our production of Benzoic Acid,4,4'-[[2,2-Bis[(4-Carboxyphenoxy)Methyl]-1,3-Propanediyl]Bis(Oxy)]Bis- adheres to a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise customer specifications. Certificates of Analysis (COA) documenting all critical parameters are provided and can be tailored to support compliance with ISO, GMP, and REACH requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed under dry conditions to prevent product degradation.

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	≤ 1.0%
Heavy Metals	≤ 20 ppm
Residual Solvents (GC)	Meets ICH guidelines

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