Description

5,5'-(Ethane-1,2-Diyl)Diisophthalic Acid is a high-purity organic dicarboxylic acid building block with a rigid, symmetrical structure. This compound matters for its role as a critical monomer in the synthesis of advanced polymers, including high-performance polyimides and polyamides, where it imparts thermal stability and mechanical strength. It is primarily needed by R&D chemists and process engineers in the specialty polymer, advanced material, and pharmaceutical intermediate sectors seeking to develop novel copolymers and dendritic structures.

Application

• Polymer Synthesis: Key monomer for producing high-temperature-resistant polyimides and polyamide-imides used in aerospace and electronics.
• Liquid Crystal Polymers (LCPs): Serves as a dicarboxylic acid component in the manufacture of LCPs for precision molded components.
• Pharmaceutical Intermediates: Used in the research and development of complex drug molecules and dendritic carriers.
• Metal-Organic Frameworks (MOFs): Acts as an organic linker in the construction of novel MOFs for gas storage and catalysis.
• Epoxy Curing Agents & Resins: Employed in the formulation of advanced epoxy systems with enhanced chemical resistance.
• Specialty Coatings: A building block for coatings requiring exceptional durability, adhesion, and thermal properties.

Basic Information

Product Name	5,5'-(Ethane-1,2-Diyl)Diisophthalic Acid
CAS No.	1774401-34-1
Molecular Formula	C20H16O8
Molecular Weight	384.34 g/mol
Synonyms	1,1'-(1,2-Ethanediyl)bis[3,5-benzenedicarboxylic acid]; 5,5'-(Ethane-1,2-diyl)bis(isophthalic acid); Bis(3,5-dicarboxyphenyl)ethane; EDDPA; 1,2-Bis(3,5-dicarboxyphenyl)ethane; 5,5'-Ethylenediisophthalic acid
EINECS	Contact for details

Quality Control

Our 5,5'-(Ethane-1,2-Diyl)Diisophthalic Acid is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via FT-IR and NMR, to ensure compliance with exacting customer specifications. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with each shipment to guarantee traceability and quality assurance for your R&D and production needs.

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). This material is hygroscopic (moisture-sensitive); ensure the container is kept sealed to prevent absorption of atmospheric moisture. Keep away from strong acids and organic solvents.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to reference spectrum
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
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.