Description

3,4'-Oxydianiline is a high-purity aromatic diamine monomer featuring an ether linkage between two aromatic rings. This compound matters as a critical building block in the synthesis of advanced polymers, offering a unique combination of thermal stability, mechanical strength, and processability. Industries that require high-performance materials, such as aerospace, electronics, and specialty coatings, rely on this monomer for developing next-generation polyimides, epoxy resins, and other high-value polymeric systems.

Application

• Polyimide Synthesis: A key monomer for producing high-temperature, high-strength polyimide films and resins used in flexible printed circuits (FPC), wire enamels, and aerospace components.
• Epoxy Curing Agent: Serves as a curing agent or hardener for advanced epoxy resin systems, enhancing thermal and chemical resistance in composite materials and adhesives.
• High-Performance Polymers: Used in the manufacture of polyamide-imides (PAI), polyetherimides (PEI), and other engineering plastics for demanding applications.
• Liquid Crystal Polymers (LCPs): Acts as a diamine component in the synthesis of LCPs for precision molded parts in electronics and automotive industries.
• Specialty Chemical Intermediate: Employed in organic synthesis for creating dyes, pigments, pharmaceuticals, and other fine chemicals requiring its specific aromatic diamine structure.
• Adhesives and Sealants: Imparts durability and heat resistance to high-performance adhesives and sealants used in extreme environments.

Basic Information

Product Name	3,4'-Oxydianiline
CAS No.	2657-87-6
Molecular Formula	C12H12N2O
Molecular Weight	200.24 g/mol
Synonyms	3,4'-Diaminodiphenyl ether; 4-(3-Aminophenoxy)aniline; 3,4'-ODA; 4,3'-Oxydianiline; Bis(3-aminophenyl) ether; 1,1'-Oxybis(3-aminobenzene); 3,4'-DADPE; 4-(3-Aminophenyloxy)benzenamine
EINECS	220-195-1

Quality Control

Our 3,4'-Oxydianiline is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC for assay and impurity profiling, to meet stringent customer specifications. A Certificate of Analysis (COA) detailing purity, physical properties, and test results is provided with every shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Due to its sensitivity to oxidation, it is recommended to store under an inert atmosphere (e.g., nitrogen or argon) for long-term preservation. Keep away from strong oxidizing agents, acids, and moisture.

Specification

Item	Specification
Appearance	White to light yellow crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 99.0%
Melting Point	78 - 82 °C
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm
Related Substances (HPLC)	Total impurities ≤ 1.0%
Individual Unknown Impurity	≤ 0.1%

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