Description

4,4'-Methylenebis(N,n-Diglycidylaniline) is a high-purity, multi-functional epoxy resin hardener and cross-linking agent. This compound is valued for its ability to impart excellent thermal stability, chemical resistance, and mechanical strength to cured epoxy systems. It is essential for manufacturers in the aerospace, electronics, and advanced composite materials industries seeking to enhance the performance of their high-end products.

Application

• Advanced Composite Materials: A critical hardener for epoxy resins in aerospace and automotive structural components, carbon fiber composites, and high-performance sporting goods.
• Electronics Encapsulation: Used in potting compounds, sealants, and underfills to protect sensitive electronic assemblies due to its low shrinkage and good dielectric properties upon curing.
• High-Temperature Adhesives: Serves as a cross-linking agent in adhesives and coatings that must maintain integrity under elevated thermal stress.
• Electrical Laminates: Employed in the production of printed circuit boards (PCBs) and other electrical insulating materials.
• Tooling and Molding: Used in resin systems for master models, patterns, and molds that require dimensional stability and durability.
• Chemical Synthesis: Acts as a building block or intermediate in the synthesis of more complex polymers and specialty chemicals.

Basic Information

Product Name	4,4'-Methylenebis(N,n-Diglycidylaniline)
CAS No.	28768-32-3
Molecular Formula	C23H28N2O4
Molecular Weight	396.48 g/mol
Synonyms	N,N-Diglycidyl-4,4'-methylenedianiline; Tetraglycidyl-4,4'-diaminodiphenylmethane; TGDDM; Araldite® MY 720; Epikote™ 604; 4,4'-Methylenebis(N,N-diglycidylbenzenamine); 1,3-Bis(4-(N,N-diglycidylamino)phenyl)propane; Bis(4-(N,N-diglycidylamino)phenyl)methane
EINECS	249-224-0

Quality Control

Our 4,4'-Methylenebis(N,n-Diglycidylaniline) is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including assay, epoxide equivalent weight (EEW) determination, and impurity profiling, to ensure it meets precise specifications for high-performance applications. A Certificate of Analysis (COA) detailing purity, physical properties, and test results is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); ensure containers are sealed immediately after use to prevent absorption of atmospheric moisture which can affect performance.

Specification

Item	Specification
Appearance	Yellow to amber viscous liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Epoxide Equivalent Weight (EEW)	95 - 105 g/eq
Viscosity (at 25°C)	Contact for details
Color (Gardner)	≤ 5
Hydrolyzable Chloride	≤ 500 ppm
Moisture (KF)	≤ 0.2%

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