Description

5,5'-(Ethene-1,2-Diyl)Diisophthalic Acid is a high-purity, functionalized aromatic dicarboxylic acid building block of significant interest in advanced materials science. This compound matters for its rigid, conjugated molecular structure, which is engineered to serve as a key precursor for synthesizing high-performance polymers and metal-organic frameworks (MOFs). It is primarily needed by R&D chemists and process engineers in the specialty polymer, pharmaceutical intermediate, and advanced materials sectors seeking to develop products with enhanced thermal stability and tailored porosity.

Application

• Polymer Synthesis: A critical monomer for the production of high-temperature resistant polyimides, polyamides, and polyesters, contributing to thermal and mechanical stability.
• Metal-Organic Frameworks (MOFs): Serves as an organic linker for constructing porous coordination polymers with potential applications in gas storage, separation, and catalysis.
• Pharmaceutical Intermediates: Used in the research and development of complex drug molecules, particularly those requiring rigid, multi-functional aromatic cores.
• Liquid Crystal Polymers (LCPs): A building block for creating monomers used in high-performance LCPs for electronics and optical devices.
• Cross-linking Agent: Functions as a cross-linker in epoxy resins and other thermosetting polymers to enhance network density and material properties.
• Specialty Coatings: Incorporated into coating formulations to improve chemical resistance, adhesion, and durability.
• Chemical Research: A valuable reagent in academic and industrial laboratories for exploring new synthetic pathways and functional materials.

Basic Information

Product Name	5,5'-(Ethene-1,2-Diyl)Diisophthalic Acid
CAS No.	1025726-44-6
Molecular Formula	C20H14O8
Molecular Weight	382.32 g/mol
Synonyms	5,5'-(1,2-Ethenediyl)bis[1,3-benzenedicarboxylic acid]; 5,5'-Vinylenediisophthalic Acid; 1,1'-(Ethene-1,2-diyl)bis(3,5-benzenedicarboxylic acid); 5,5'-(Ethenediyl)diisophthalic acid; 4,4'-(1,2-Ethenediyl)bis[1,3-benzenedicarboxylic acid] (alternate numbering); VDPA; EDDPA; Contact for details on additional trade names.
EINECS	Contact for details

Quality Control

Our 5,5'-(Ethene-1,2-Diyl)Diisophthalic Acid is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure high purity and consistent performance. Standard quality checks include assay (HPLC), identification (IR, NMR), and control of key impurities. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee compliance with your research and production specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed after opening to minimize exposure to atmospheric moisture. Keep away from incompatible materials such as strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition	≤ 0.1%
Single Impurity (HPLC)	≤ 0.5%
Total Impurities (HPLC)	≤ 2.0%

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