Description

4,4'-Methylenebis(2-Ethyl-6-Methylaniline) is a high-purity aromatic diamine primarily used as a curing agent and chain extender in advanced polymer systems. Its chemical structure provides excellent thermal stability and mechanical properties to the final materials, making it a critical component for performance-driven applications. This compound is essential for manufacturers in the polyurethane, epoxy resin, and specialty elastomer industries seeking to enhance product durability and processing characteristics.

Application

• Polyurethane Elastomers and Coatings: Serves as a high-performance chain extender and curing agent, contributing to superior tensile strength, abrasion resistance, and thermal stability in cast elastomers, adhesives, and protective coatings.
• Epoxy Resin Systems: Acts as a curing agent for epoxy resins, particularly in formulations requiring high heat deflection temperatures and excellent chemical resistance for composite materials and electrical encapsulation.
• High-Performance Rubber and Tire Chemicals: Used in the synthesis of antidegradants and accelerators, improving the aging resistance and durability of synthetic rubbers and tire components.
• Polyimide and Other High-Temperature Polymers: A key monomer in the production of polyimide resins and other heat-resistant polymers used in aerospace, electronics, and automotive applications.
• Dye and Pigment Intermediates: Functions as a building block in the synthesis of complex organic dyes and pigments, particularly azo dyes.
• Pharmaceutical and Agrochemical Intermediates: Employed in the synthesis of active pharmaceutical ingredients (APIs) and specialized agrochemicals.

Basic Information

Product Name	4,4'-Methylenebis(2-Ethyl-6-Methylaniline)
CAS No.	19900-72-2
Molecular Formula	C19H26N2
Molecular Weight	282.43 g/mol
Synonyms	MBEA; 4,4'-Methylenebis(2-ethyl-6-methylbenzenamine); Ethacure 100 (trade name); 2,2'-Dimethyl-4,4'-methylenebis(6-ethylaniline); Bis(2-ethyl-6-methyl-4-aminophenyl)methane; 4,4'-Methylenebis(6-ethyl-o-toluidine); 4,4'-(Methylenedi-p-phenylene)bis(2-ethyl-6-methylaniline); Curene 442
EINECS	243-409-3

Quality Control

Our 4,4'-Methylenebis(2-Ethyl-6-Methylaniline) is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets the high-purity standards required for industrial and fine chemical synthesis. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment to guarantee traceability and batch-to-batch consistency.

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 easily oxidized and should be stored under an inert atmosphere (e.g., nitrogen) for long-term storage to prevent discoloration and degradation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Light yellow to amber crystalline solid or flakes
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 99.0%
Melting Point	85 - 90 °C
Moisture (KF)	≤ 0.2%
Ash Content	≤ 0.1%

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