Description

4,4'-Methylenebis(2,6-Diethylaniline) is a high-purity aromatic diamine monomer, also known by its CAS number 13680-35-8. It serves as a critical curing agent and chain extender in the synthesis of high-performance polymers, valued for its ability to impart excellent thermal stability and mechanical properties. This compound is essential for manufacturers in the polyurethane, epoxy resin, and specialty polyimide sectors seeking to enhance product durability and performance under demanding conditions.

Application

• Polyurethane Elastomers & Coatings: A key curing agent for MDI-based prepolymers, producing elastomers with superior toughness, chemical resistance, and low-temperature flexibility for industrial applications.
• High-Performance Epoxy Systems: Used as a co-curing agent or hardener in advanced epoxy formulations for composites, adhesives, and electrical encapsulation requiring high heat deflection temperature.
• Specialty Polyimides & Polyamides: Acts as a monomer in the synthesis of heat-resistant polymers for aerospace, electronics, and automotive components.
• Liquid Crystal Polymers (LCPs): A building block in the production of high-strength, temperature-resistant LCPs for precision molded parts.
• Chemical Intermediate: Utilized in organic synthesis for creating complex molecules in pharmaceutical and agrochemical research.
• Adhesives & Sealants: Imparts enhanced durability and adhesion in high-specification industrial adhesive formulations.

Basic Information

Product Name	4,4'-Methylenebis(2,6-Diethylaniline)
CAS No.	13680-35-8
Molecular Formula	C21H30N2
Molecular Weight	310.48 g/mol
Synonyms	MDEA; 4,4'-Methylenebis(2,6-diethylbenzenamine); Bis(4-amino-3,5-diethylphenyl)methane; 2,2'-Diethyl-4,4'-methylenedianiline; Ethacure 100 (trade name); Lonzacure M-DEA (trade name); 4,4'-(Methylenedi-4,1-phenylene)bis(2,6-diethylaniline); 4,4'-Methylenebis(2,6-diethyl)aniline
EINECS	237-193-6

Quality Control

Our 4,4'-Methylenebis(2,6-Diethylaniline) is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting industry specifications. Certificates of Analysis (COA) detailing all relevant parameters are provided with every shipment to guarantee traceability and consistent quality for your production processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is light-sensitive and easily oxidized; for long-term storage, consider an inert atmosphere (e.g., nitrogen blanket) to maintain optimal purity. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Light yellow to amber crystalline solid or melt
Identification (IR)	Conforms
Assay (HPLC)	≥ 99.0%
Melting Point	88 - 92 °C
Moisture (KF)	≤ 0.1%
Isomer Content	Reported on COA

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